Skip to main content

Linux CVE-2026-23274

| EUVDEUVD-2026-13610 HIGH
Reliance on Undefined, Unspecified, or Implementation-Defined Behavior (CWE-758)
2026-03-20 Linux
Information Disclosure Linux
7.8
CVSS 3.1 · Vendor: Linux
View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Gain local shell access
  2. Delivery
    Escalate to CAP_NET_ADMIN privileges
  3. Exploit
    Create IDLETIMER rev1 rule with ALARM flag
  4. Execution
    Create IDLETIMER rev0 rule with same label
  5. Persist
    Trigger mod_timer on uninitialized object
  6. Impact
    Kernel panic or memory corruption

Vulnerability Assessment

Weakness
CWE
CWE-758
ASVS 5.0
V15 - Secure Coding and Architecture Reliance on undefined/unspecified behavior
Exploitation Conditions

Requires local authenticated access with CAP_NET_ADMIN capability or root privileges to configure netfilter rules via iptables/nftables. Attacker must create xt_IDLETIMER revision 1 rule with XT_IDLETIMER_ALARM flag and specific label, then create revision 0 rule reusing identical label string. Exploitation limited to Linux kernel versions 5.7 through unpatched 6.x series that include commit 68983a354a65 but lack the validation fix. Maximum impact (kernel panic denial of service) requires kernel built with CONFIG_DEBUG_OBJECTS_TIMERS or panic_on_warn=1 boot parameter; without these, uninitialized timer access may cause memory corruption with variable impact. Exploitation is blocked by: requirement for privileged capabilities (CAP_NET_ADMIN not available to standard users), namespace isolation in default container configurations preventing unprivileged netfilter access, and SELinux/AppArmor policies restricting netfilter manipulation. Specific netfilter configuration is required - systems not using IDLETIMER module or not loading xt_IDLETIMER kernel module are not vulnerable.
Impact

CVSS 7.8 (High) with local attack vector (AV:L), low complexity (AC:L), low privileges required (PR:L), and high impact across confidentiality, integrity, and availability (C:H/I:H/A:H) suggests significant risk for local authenticated attackers. However, real-world exploitability requires nuanced assessment. The PR:L indicates low privileges, but exploiting netfilter configuration actually requires CAP_NET_ADMIN capability or root access in most Linux distributions, which is a substantial privilege escalation barrier not fully captured by the generic PR:L rating. The EPSS score of 0.02% (4th percentile) indicates extremely low observed exploitation probability in the wild, consistent with the requirement for elevated privileges and specialized netfilter knowledge. Not present in CISA KEV, and no public POC identified, further supporting low real-world exploitation. The primary realistic impact is denial of service via kernel panic on systems using panic_on_warn=1 (common in security-hardened environments). The CVSS C:H and I:H ratings appear inflated - while kernel memory corruption is theoretically possible, achieving reliable code execution or information disclosure through uninitialized timer_list manipulation is highly complex and not demonstrated. Ubuntu assigns 'medium' priority despite High CVSS, suggesting vendor risk assessment aligns with lower practical severity. This is a legitimate local kernel bug requiring patching, but not an urgent crisis for most deployments. Priority should increase for containerized environments or multi-tenant systems where unprivileged users might gain netfilter access through namespace isolation issues.
Exploit ScenarioDerived

A local authenticated attacker with CAP_NET_ADMIN capability on a Linux system running kernel 5.7-6.19 crafts two netfilter rules: first creates an IDLETIMER revision 1 rule with a specific label (e.g., 'test_timer') configured with XT_IDLETIMER_ALARM flag, then creates a second IDLETIMER revision 0 rule reusing the same 'test_timer' label. The revision 0 insertion triggers mod_timer() on the uninitialized timer->timer field, causing kernel debugobjects to detect the violation and, on systems with panic_on_warn=1, immediately panic the kernel, achieving denial of service. On systems without panic_on_warn, memory corruption may occur depending on uninitialized memory contents. No public exploit code exists, but the attack requires only standard iptables commands with elevated privileges.
Act Now Prioritize within 24-48h. Why: Active threat signals + CRITICAL/HIGH severity.
Patch available 0.0% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv2 – Apr 18, 2026

Linux kernel netfilter xt_IDLETIMER subsystem crashes when revision 0 rules reuse ALARM-type timer labels created by revision 1, triggering mod_timer() on an uninitialized timer_list. Affects Linux kernel 5.7+ through 6.19.x series. Local authenticated attackers with CAP_NET_ADMIN (PR:L) can cause kernel panic on systems with panic_on_warn=1, achieving high-severity local denial of service or potential privilege escalation via kernel memory corruption. EPSS score is very low (0.02%, 4th percentile) indicating minimal observed exploitation likelihood. No public exploit code identified at time of analysis.

Earlier versions of this analysis (1)
v1 Mar 20, 2026 - 08:45 CVSS 7.8

This vulnerability exists in the Linux kernel's netfilter xt_IDLETIMER module, where revision 0 rules can cause a kernel panic by attempting to reuse timer objects created by revision 1 with ALARM semantics. An attacker with the ability to insert netfilter rules (requiring CAP_NET_ADMIN or equivalent privileges) can trigger uninitialized timer_list access, leading to debugobjects warnings and kernel panic when panic_on_warn=1 is enabled. No active exploitation in the wild has been reported, but patches are available across multiple stable kernel versions.

RemediationAI

Primary remediation is upgrading to patched kernel versions: 6.18.19+, 6.19.9+, or 7.0-rc4+ depending on your stable branch, or apply backport commits from git.kernel.org stable tree (mainline fix 329f0b9b48ee, stable backports f5ef97c13165, f228b9ae2a7e, plus branch-specific commits 28c7cfaf0c0a, 54080355999, 5e7ece24c5cb, 144f88054ba0, 32e937dc6e97). Patch implementation adds validation in xt_IDLETIMER revision 0 rule insertion path to reject reuse of labels associated with ALARM-type timers, returning -EBUSY error instead of proceeding with uninitialized timer operations. For systems unable to immediately patch, implement compensating controls: restrict CAP_NET_ADMIN capability through AppArmor/SELinux mandatory access controls to prevent unprivileged users from manipulating netfilter rules (note: this is often default configuration but should be verified); disable panic_on_warn kernel parameter to prevent denial-of-service escalation to full system panic, though this reduces detection of other kernel issues and debugobjects warnings will still occur in logs; audit existing iptables/nftables rulesets for usage of IDLETIMER targets and remove conflicting revision 0 and revision 1 rules with identical labels as temporary mitigation. Disabling panic_on_warn reduces immediate availability impact but allows the uninitialized timer issue to persist silently, potentially causing memory corruption, so this is only a stopgap measure. Organizations using containerized workloads with user namespaces should prioritize patching as namespace isolation may lower the effective privilege barrier.

Affected VersionsENISA

Linux 68983a354a655c35d3fb204489d383a2a051fda7 <f5ef97c13165542480a6ffdbe6f09f40bbb7cbf1
Linux patch: 0
Linux patch: 7.0-rc4
Linux 5.7
Linux patch: 6.19.9
Linux 68983a354a655c35d3fb204489d383a2a051fda7 <f228b9ae2a7e84d1153616d8e71c4236cb1f1309
Linux patch: 6.18.19
Linux 68983a354a655c35d3fb204489d383a2a051fda7 <329f0b9b48ee6ab59d1ab72fef55fe8c6463a6cf

Affected Packages

euvd linux no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Sign in to check
Technical ContextAI · show details

The xt_IDLETIMER module is a Netfilter extension in the Linux kernel used to track network connection idle timeouts. It supports two revisions with different timer mechanisms: revision 0 uses standard kernel timer_list objects, while revision 1 can use ALARM timers (XT_IDLETIMER_ALARM flag) which rely on alarmtimer subsystem semantics instead of timer_list. Both revisions reuse existing timer objects by matching string labels. The vulnerability arises from a type confusion issue: when revision 1 creates a timer with ALARM semantics, the timer->timer field (a struct timer_list) is never initialized because alarm timers use a different timing mechanism. If a subsequent revision 0 rule references the same label, it blindly calls mod_timer() on the uninitialized timer->timer field. This triggers kernel debugobjects warnings for operating on uninitialized timer objects and can cause kernel panic when CONFIG_PANIC_ON_WARN is enabled or panic_on_warn=1 boot parameter is set. The root cause is inadequate validation when reusing timer objects across API revisions with incompatible internal representations. The affected code path is in net/netfilter/xt_IDLETIMER.c, introduced in commit 68983a354a65 and fixed across stable kernel branches.

Know when the next one hits your stack

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources
Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

Vendor (Linux) PRIMARY 7.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Ubuntu MEDIUM
SUSE HIGH
Red Hat 5.5 MEDIUM

Primary rating from Vendor (Linux).

CVSS VectorVendor: Linux

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Updated
Apr 18, 2026 - 09:39 vuln.today
v2 - CVSS changed
Patch released
Mar 31, 2026 - 21:13 nvd
Patch available
CVE Published
Mar 20, 2026 - 08:08 nvd
HIGH 7.8

DescriptionCVE.org

In the Linux kernel, the following vulnerability has been resolved:

netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer labels

IDLETIMER revision 0 rules reuse existing timers by label and always call mod_timer() on timer->timer.

If the label was created first by revision 1 with XT_IDLETIMER_ALARM, the object uses alarm timer semantics and timer->timer is never initialized. Reusing that object from revision 0 causes mod_timer() on an uninitialized timer_list, triggering debugobjects warnings and possible panic when panic_on_warn=1.

Fix this by rejecting revision 0 rule insertion when an existing timer with the same label is of ALARM type.

Executive ViewAI

Why It Matters

CVE-2026-23274 is a Linux kernel netfilter vulnerability affecting versions 5.7 through 6.19.x that allows local authenticated administrators to crash the kernel through malformed timer rule configurations, potentially leading to system unavailability or privilege escalation. Organizations running affected Linux distributions with network administration capabilities should prioritize patching to prevent denial of service attacks from privileged internal users.

Business Impact: Medium
Compensating Controls

Apply vendor patch. Interim mitigations pending patch deployment: restrict CAP_NET_ADMIN capability to essential personnel only using Linux security modules (AppArmor/SELinux); disable panic_on_warn in kernel parameters to reduce denial-of-service impact; monitor netfilter rule modifications via audit logging for suspicious timer label reuse patterns.

Threat Intelligence Overview

EPSS Score
0.0%
Top 96% exploitable
Threat Intel
3
1 source
Data Quality
7 sources
Confidence: High
EUVD NVD CVE.org EPSS CISA Vendor VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.0%
Patch available Yes
Active threat Yes
Deciding rule
Active threat signals + CRITICAL/HIGH severity
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact
Medium

Priority Score

49
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +39
PoC: 0
Weaponized: 0
Threat intel: +10
Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Related Vulnerabilities in Linux Kernel Network and Event Handling

View all 8
CVE-2026-23271 HIGH
7.8
CVE-2026-23272 HIGH
7.8
CVE-2026-23278 HIGH
7.8
CVE-2026-23273 HIGH
7.8
CVE-2026-23276 MEDIUM
5.5
CVE-2026-23277 MEDIUM
5.5
CVE-2026-23275 HIGH
7.8

Same weakness CWE-758 – Reliance on Undefined, Unspecified, or Implementation-Defined Behavior

View all
CVE-2026-4705 CRITICAL
9.8
CVE-2026-4724 CRITICAL
9.1
CVE-2023-30624 HIGH
8.8
CVE-2026-100771 HIGH
8.1
CVE-2026-4718 HIGH
8.1
CVE-2026-16441 MEDIUM
6.9
CVE-2024-4774 MEDIUM
6.5
CVE-2026-34537 MEDIUM
6.2

Same technique Information Disclosure

View all
CVE-2019-2725 CRITICAL POC
9.8
CVE-2021-34523 CRITICAL POC
9.0
CVE-2013-2251 CRITICAL POC
9.8
CVE-2017-5638 CRITICAL POC
9.8
CVE-2025-24813 CRITICAL POC
9.8
CVE-2025-68613 HIGH POC
8.8
CVE-2015-1701 HIGH POC
7.8
CVE-2017-0147 HIGH POC
7.5

Vendor StatusVendor

Ubuntu

Priority: Medium
linux
Release Status Version
trusty needs-triage -
xenial needs-triage -
bionic needs-triage -
focal needs-triage -
jammy needs-triage -
noble needs-triage -
questing needs-triage -
upstream needs-triage -
linux-hwe
Release Status Version
xenial needs-triage -
bionic ignored replaced by linux-hwe-5.4
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-hwe-5.4
Release Status Version
bionic needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-hwe-5.8
Release Status Version
focal ignored superseded by linux-hwe-5.11
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-hwe-5.11
linux-hwe-5.11
Release Status Version
focal ignored superseded by linux-hwe-5.13
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-hwe-5.13
linux-hwe-5.13
Release Status Version
focal ignored superseded by linux-hwe-5.15
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-hwe-5.15
linux-hwe-5.15
Release Status Version
focal needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-hwe-5.19
Release Status Version
jammy ignored superseded by linux-hwe-6.2
noble DNE -
questing DNE -
upstream ignored superseded by linux-hwe-6.2
linux-hwe-6.2
Release Status Version
jammy ignored superseded by linux-hwe-6.5
noble DNE -
questing DNE -
upstream ignored superseded by linux-hwe-6.5
linux-hwe-6.5
Release Status Version
jammy ignored superseded by linux-hwe-6.8
noble DNE -
questing DNE -
upstream ignored superseded by linux-hwe-6.8
linux-hwe-6.8
Release Status Version
jammy needs-triage -
noble DNE -
questing DNE -
upstream needs-triage -
linux-hwe-6.11
Release Status Version
jammy DNE -
noble ignored superseded by linux-hwe-6.14
questing DNE -
upstream ignored superseded by linux-hwe-6.14
linux-hwe-6.14
Release Status Version
jammy DNE -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-hwe-6.17
Release Status Version
jammy DNE -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-hwe-edge
Release Status Version
xenial ignored superseded by linux-hwe
bionic ignored superseded by linux-hwe-5.4
jammy DNE -
noble DNE -
questing DNE -
upstream ignored end of life
linux-lts-xenial
Release Status Version
trusty needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-kvm
Release Status Version
xenial needs-triage -
bionic needs-triage -
focal needs-triage -
jammy needs-triage -
noble DNE -
questing DNE -
upstream needs-triage -
linux-allwinner-5.19
Release Status Version
jammy ignored end of kernel support
noble DNE -
questing DNE -
upstream ignored end of life
linux-aws
Release Status Version
trusty needs-triage -
xenial needs-triage -
bionic needs-triage -
focal needs-triage -
jammy needs-triage -
noble needs-triage -
questing needs-triage -
upstream needs-triage -
linux-aws-5.0
Release Status Version
bionic ignored superseded by linux-aws-5.3
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-aws-5.3
linux-aws-5.3
Release Status Version
bionic ignored superseded by linux-aws-5.4
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-aws-5.4
linux-aws-5.4
Release Status Version
bionic needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-aws-5.8
Release Status Version
focal ignored superseded by linux-aws-5.11
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-aws-5.11
linux-aws-5.11
Release Status Version
focal ignored superseded by linux-aws-5.13
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-aws-5.13
linux-aws-5.13
Release Status Version
focal ignored superseded by linux-aws-5.15
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-aws-5.15
linux-aws-5.15
Release Status Version
focal needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-aws-5.19
Release Status Version
jammy ignored superseded by linux-aws-6.2
noble DNE -
questing DNE -
upstream ignored superseded by linux-aws-6.2
linux-aws-6.2
Release Status Version
jammy ignored superseded by linux-aws-6.5
noble DNE -
questing DNE -
upstream ignored superseded by linux-aws-6.5
linux-aws-6.5
Release Status Version
jammy ignored superseded by linux-aws-6.8
noble DNE -
questing DNE -
upstream ignored superseded by linux-aws-6.8
linux-aws-6.8
Release Status Version
jammy needs-triage -
noble DNE -
questing DNE -
upstream needs-triage -
linux-aws-6.14
Release Status Version
jammy DNE -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-aws-6.17
Release Status Version
jammy DNE -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-aws-hwe
Release Status Version
xenial needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-azure
Release Status Version
trusty needs-triage -
xenial needs-triage -
bionic ignored superseded by linux-azure-5.3
focal needs-triage -
jammy needs-triage -
noble needs-triage -
questing needs-triage -
upstream needs-triage -
linux-azure-4.15
Release Status Version
bionic needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-azure-5.3
Release Status Version
bionic ignored superseded by linux-azure-5.4
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-azure-5.4
linux-azure-5.4
Release Status Version
bionic needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-azure-5.8
Release Status Version
focal ignored superseded by linux-azure-5.11
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-azure-5.11
linux-azure-5.11
Release Status Version
focal ignored superseded by linux-azure-5.13
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-azure-5.13
linux-azure-5.13
Release Status Version
focal ignored superseded by linux-azure-5.15
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-azure-5.15
linux-azure-5.15
Release Status Version
focal needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-azure-5.19
Release Status Version
jammy ignored superseded by linux-azure-6.2
noble DNE -
questing DNE -
upstream ignored superseded by linux-azure-6.2
linux-azure-6.2
Release Status Version
jammy ignored superseded by linux-azure-6.5
noble DNE -
questing DNE -
upstream ignored superseded by linux-azure-6.5
linux-azure-6.5
Release Status Version
jammy ignored superseded by linux-azure-6.8
noble DNE -
questing DNE -
upstream ignored superseded by linux-azure-6.8
linux-azure-6.8
Release Status Version
jammy needs-triage -
noble DNE -
questing DNE -
upstream needs-triage -
linux-azure-6.11
Release Status Version
jammy DNE -
noble ignored superseded by linux-azure-6.14
questing DNE -
upstream ignored superseded by linux-azure-6.14
linux-azure-6.14
Release Status Version
jammy DNE -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-azure-6.17
Release Status Version
jammy DNE -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-azure-fde
Release Status Version
focal ignored superseded by linux-azure-fde-5.15
jammy needs-triage -
noble needs-triage -
questing needs-triage -
upstream needs-triage -
linux-azure-fde-5.15
Release Status Version
focal needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-azure-fde-5.19
Release Status Version
jammy ignored superseded by linux-azure-fde-6.2
noble DNE -
questing DNE -
upstream ignored superseded by linux-azure-fde-6.2
linux-azure-fde-6.2
Release Status Version
jammy ignored replaced by linux-azure-6.5
noble DNE -
questing DNE -
upstream ignored replaced by linux-azure-6.5
linux-azure-fde-6.8
Release Status Version
jammy needs-triage -
noble DNE -
questing DNE -
upstream needs-triage -
linux-azure-fde-6.14
Release Status Version
jammy DNE -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-azure-fde-6.17
Release Status Version
jammy DNE -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-azure-nvidia
Release Status Version
jammy DNE -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-azure-nvidia-6.14
Release Status Version
jammy DNE -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-bluefield
Release Status Version
focal needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-azure-edge
Release Status Version
bionic ignored superseded by linux-azure-5.3
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-azure-5.3
linux-fips
Release Status Version
xenial needs-triage -
bionic needs-triage -
focal needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-aws-fips
Release Status Version
bionic needs-triage -
focal needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-azure-fips
Release Status Version
bionic needs-triage -
focal needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-gcp-fips
Release Status Version
bionic needs-triage -
focal needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-gcp
Release Status Version
xenial needs-triage -
bionic ignored superseded by linux-gcp-5.3
focal needs-triage -
jammy needs-triage -
noble needs-triage -
questing needs-triage -
upstream needs-triage -
linux-gcp-4.15
Release Status Version
bionic needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-gcp-5.3
Release Status Version
bionic ignored superseded by linux-gcp-5.4
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-gcp-5.4
linux-gcp-5.4
Release Status Version
bionic needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-gcp-5.8
Release Status Version
focal ignored superseded by linux-gcp-5.11
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-gcp-5.11
linux-gcp-5.11
Release Status Version
focal ignored superseded by linux-gcp-5.13
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-gcp-5.13
linux-gcp-5.13
Release Status Version
focal ignored superseded by linux-gcp-5.15
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-gcp-5.15
linux-gcp-5.15
Release Status Version
focal needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-gcp-5.19
Release Status Version
jammy ignored superseded by linux-gcp-6.2
noble DNE -
questing DNE -
upstream ignored superseded by linux-gcp-6.2
linux-gcp-6.2
Release Status Version
jammy ignored superseded by linux-gcp-6.5
noble DNE -
questing DNE -
upstream ignored superseded by linux-gcp-6.5
linux-gcp-6.5
Release Status Version
jammy ignored superseded by linux-gcp-6.8
noble DNE -
questing DNE -
upstream ignored superseded by linux-gcp-6.8
linux-gcp-6.8
Release Status Version
jammy needs-triage -
noble DNE -
questing DNE -
upstream needs-triage -
linux-gcp-6.11
Release Status Version
jammy DNE -
noble ignored superseded by linux-gcp-6.14
questing DNE -
upstream ignored superseded by linux-gcp-6.14
linux-gcp-6.14
Release Status Version
jammy DNE -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-gcp-6.17
Release Status Version
jammy DNE -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-gke
Release Status Version
focal ignored end of kernel support
jammy needs-triage -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-gke-4.15
Release Status Version
bionic ignored superseded by linux-gke-5.0
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-gke-5.0
linux-gke-5.4
Release Status Version
bionic ignored end of kernel support
jammy DNE -
noble DNE -
questing DNE -
upstream ignored end of life
linux-gke-5.15
Release Status Version
focal ignored end of kernel support
jammy DNE -
noble DNE -
questing DNE -
upstream ignored end of life
linux-gkeop
Release Status Version
focal ignored end of kernel support
jammy needs-triage -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-gkeop-5.4
Release Status Version
bionic ignored end of kernel support
jammy DNE -
noble DNE -
questing DNE -
upstream ignored end of life
linux-gkeop-5.15
Release Status Version
focal ignored end of kernel support
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-ibm
Release Status Version
focal needs-triage -
jammy needs-triage -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-ibm-5.4
Release Status Version
bionic needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-ibm-5.15
Release Status Version
focal needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-ibm-6.8
Release Status Version
jammy needs-triage -
noble DNE -
questing DNE -
upstream needs-triage -
linux-intel-5.13
Release Status Version
focal ignored end of kernel support
jammy DNE -
noble DNE -
questing DNE -
upstream ignored end of life
linux-intel-iotg
Release Status Version
jammy needs-triage -
noble DNE -
questing DNE -
upstream needs-triage -
linux-intel-iotg-5.15
Release Status Version
focal needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-iot
Release Status Version
focal needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-intel-iot-realtime
Release Status Version
jammy ignored superseded by Ubuntu Pro ppa version
noble DNE -
questing DNE -
upstream needs-triage -
linux-lowlatency
Release Status Version
jammy needs-triage -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-lowlatency-hwe-5.15
Release Status Version
focal needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-lowlatency-hwe-5.19
Release Status Version
jammy ignored superseded by linux-lowlatency-hwe-6.2
noble DNE -
questing DNE -
upstream ignored superseded by linux-lowlatency-hwe-6.2
linux-lowlatency-hwe-6.2
Release Status Version
jammy ignored superseded by linux-lowlatency-hwe-6.5
noble DNE -
questing DNE -
upstream ignored superseded by linux-lowlatency-hwe-6.5
linux-lowlatency-hwe-6.5
Release Status Version
jammy ignored superseded by linux-lowlatency-hwe-6.8
noble DNE -
questing DNE -
upstream ignored superseded by linux-lowlatency-hwe-6.8
linux-lowlatency-hwe-6.8
Release Status Version
jammy needs-triage -
noble DNE -
questing DNE -
upstream needs-triage -
linux-lowlatency-hwe-6.11
Release Status Version
jammy DNE -
noble ignored replaced by linux-hwe-6.14
questing DNE -
upstream ignored replaced by linux-hwe-6.14
linux-nvidia
Release Status Version
jammy needs-triage -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-nvidia-6.2
Release Status Version
jammy ignored superseded by linux-nvidia-6.5
noble DNE -
questing DNE -
upstream ignored superseded by linux-nvidia-6.5
linux-nvidia-6.5
Release Status Version
jammy ignored superseded by linux-nvidia-6.8
noble DNE -
questing DNE -
upstream ignored superseded by linux-nvidia-6.8
linux-nvidia-6.8
Release Status Version
jammy needs-triage -
noble DNE -
questing DNE -
upstream needs-triage -
linux-nvidia-6.11
Release Status Version
jammy DNE -
noble ignored end of kernel support
questing DNE -
upstream ignored end of kernel support
linux-nvidia-lowlatency
Release Status Version
jammy DNE -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-nvidia-tegra
Release Status Version
jammy needs-triage -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-nvidia-tegra-5.15
Release Status Version
focal needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-nvidia-tegra-igx
Release Status Version
jammy needs-triage -
noble DNE -
questing DNE -
upstream needs-triage -
linux-oracle
Release Status Version
xenial needs-triage -
bionic needs-triage -
focal needs-triage -
jammy needs-triage -
noble needs-triage -
questing needs-triage -
upstream needs-triage -
linux-oracle-5.0
Release Status Version
bionic ignored superseded by linux-oracle-5.3
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-oracle-5.3
linux-oracle-5.3
Release Status Version
bionic ignored superseded by linux-oracle-5.4
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-oracle-5.4
linux-oracle-5.4
Release Status Version
bionic needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-oracle-5.8
Release Status Version
focal ignored superseded by linux-oracle-5.11
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-oracle-5.11
linux-oracle-5.11
Release Status Version
focal ignored superseded by linux-oracle-5.13
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-oracle-5.13
linux-oracle-5.13
Release Status Version
focal ignored superseded by linux-oracle-5.15
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-oracle-5.15
linux-oracle-5.15
Release Status Version
focal needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-oracle-6.5
Release Status Version
jammy ignored superseded by linux-oracle-6.8
noble DNE -
questing DNE -
upstream ignored superseded by linux-oracle-6.8
linux-oracle-6.8
Release Status Version
jammy needs-triage -
noble DNE -
questing DNE -
upstream needs-triage -
linux-oracle-6.14
Release Status Version
jammy DNE -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-oracle-6.17
Release Status Version
jammy DNE -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-oem
Release Status Version
bionic ignored replaced by linux-hwe-5.4
jammy DNE -
noble DNE -
questing DNE -
upstream ignored end of life
linux-oem-5.6
Release Status Version
focal ignored superseded by linux-oem-5.10
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-oem-5.10
linux-oem-5.10
Release Status Version
focal ignored superseded by linux-oem-5.13
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-oem-5.13
linux-oem-5.13
Release Status Version
focal ignored superseded by linux-oem-5.14
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-oem-5.14
linux-oem-5.14
Release Status Version
focal ignored replaced by linux-hwe-5.15
jammy DNE -
noble DNE -
questing DNE -
upstream ignored replaced by linux-hwe-5.15
linux-oem-5.17
Release Status Version
jammy ignored superseded by linux-oem-6.1
noble DNE -
questing DNE -
upstream ignored superseded by linux-oem-6.1
linux-oem-6.0
Release Status Version
jammy ignored superseded by linux-oem-6.1
noble DNE -
questing DNE -
upstream ignored superseded by linux-oem-6.1
linux-oem-6.1
Release Status Version
jammy ignored superseded by linux-oem-6.5
noble DNE -
questing DNE -
upstream ignored superseded by linux-oem-6.5
linux-oem-6.5
Release Status Version
jammy ignored superseded by linux-oem-6.8
noble DNE -
questing DNE -
upstream ignored superseded by linux-oem-6.8
linux-oem-6.8
Release Status Version
jammy DNE -
noble ignored superseded by linux-oem-6.14
questing DNE -
upstream ignored superseded by linux-oem-6.14
linux-oem-6.11
Release Status Version
jammy DNE -
noble ignored superseded by linux-oem-6.14
questing DNE -
upstream ignored superseded by linux-oem-6.14
linux-oem-6.14
Release Status Version
jammy DNE -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-oem-6.17
Release Status Version
jammy DNE -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-raspi
Release Status Version
focal needs-triage -
jammy needs-triage -
noble needs-triage -
questing needs-triage -
upstream needs-triage -
linux-raspi2
Release Status Version
focal ignored replaced by linux-raspi
jammy DNE -
noble DNE -
questing DNE -
upstream ignored replaced by linux-raspi
linux-raspi-5.4
Release Status Version
bionic needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-raspi-realtime
Release Status Version
jammy DNE -
noble ignored superseded by Ubuntu Pro ppa version
questing DNE -
upstream needs-triage -
linux-realtime
Release Status Version
jammy ignored superseded by Ubuntu Pro ppa version
noble ignored superseded by Ubuntu Pro ppa version
questing needs-triage -
upstream needs-triage -
linux-realtime-6.8
Release Status Version
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-realtime-6.14
Release Status Version
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-riscv
Release Status Version
focal ignored superseded by linux-riscv-5.8
jammy ignored end of kernel support
noble ignored replaced by linux-riscv-6.14
questing needs-triage -
upstream needs-triage -
linux-riscv-5.8
Release Status Version
focal ignored superseded by linux-riscv-5.11
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-riscv-5.11
linux-riscv-5.11
Release Status Version
focal ignored superseded by linux-riscv-5.13
jammy DNE -
noble DNE -
questing DNE -
upstream ignored superseded by linux-riscv-5.13
linux-riscv-5.15
Release Status Version
focal needs-triage -
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -
linux-riscv-5.19
Release Status Version
jammy ignored end of kernel support
noble DNE -
questing DNE -
upstream ignored end of life
linux-riscv-6.5
Release Status Version
jammy ignored superseded by linux-riscv-6.8
noble DNE -
questing DNE -
upstream ignored superseded by linux-riscv-6.8
linux-riscv-6.8
Release Status Version
jammy needs-triage -
noble DNE -
questing DNE -
upstream needs-triage -
linux-riscv-6.14
Release Status Version
jammy DNE -
noble ignored superseded by linux-riscv-6.17
questing DNE -
upstream ignored superseded by linux-riscv-6.17
linux-riscv-6.17
Release Status Version
jammy DNE -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-starfive-5.19
Release Status Version
jammy ignored end of kernel support
noble DNE -
questing DNE -
upstream ignored end of life
linux-starfive-6.2
Release Status Version
jammy ignored superseded by linux-starfive-6.5
noble DNE -
questing DNE -
upstream ignored superseded by linux-starfive-6.5
linux-starfive-6.5
Release Status Version
jammy ignored end of kernel support
noble DNE -
questing DNE -
upstream ignored end of life
linux-xilinx
Release Status Version
jammy DNE -
noble needs-triage -
questing DNE -
upstream needs-triage -
linux-xilinx-zynqmp
Release Status Version
focal needs-triage -
jammy needs-triage -
noble DNE -
questing DNE -
upstream needs-triage -
linux-realtime-6.17
Release Status Version
jammy DNE -
noble DNE -
questing DNE -
upstream needs-triage -

Debian

linux
Release Status Fixed Version Urgency
bullseye vulnerable 5.10.223-1 -
bullseye (security) vulnerable 5.10.251-1 -
bookworm vulnerable 6.1.159-1 -
bookworm (security) vulnerable 6.1.164-1 -
trixie vulnerable 6.12.73-1 -
trixie (security) vulnerable 6.12.74-2 -
forky vulnerable 6.19.6-2 -
sid vulnerable 6.19.8-1 -
(unstable) fixed (unfixed) -

SUSE

Severity: High
Product Status
SUSE Linux Enterprise High Availability Extension 15 SP7 Affected
SUSE Linux Enterprise Module for Basesystem 15 SP7 Affected
SUSE Linux Enterprise Server 15 SP7 Affected
SUSE Linux Enterprise Desktop 15 SP7 Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP7 Affected

Threat IntelligenceMISP

CISA Advisories
ICSA-26-209-04 ICSA-26-295-11 ICSA-26-295-16
Sources: CISA (public domain)

References

Advisories & patches
ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-23274 ADVISORY https://seclists.org/oss-sec/2026/q3/665 ADVISORY https://seclists.org/oss-sec/2026/q3/678 ADVISORY https://ubuntu.com/security/notices/USN-8277-1 ADVISORY https://ubuntu.com/security/notices/USN-8278-1 ADVISORY https://ubuntu.com/security/notices/USN-8279-1 ADVISORY https://vuldb.com/?id.352029 REF https://cert-portal.siemens.com/productcert/html/ssa-019113.html REF https://cert-portal.siemens.com/productcert/html/ssa-082556.html REF https://cert-portal.siemens.com/productcert/html/ssa-457936.html REF https://cert-portal.siemens.com/productcert/html/ssa-784472.html REF https://git.kernel.org/stable/c/144f88054ba0180467356f40895bd660b5dceeec REF https://git.kernel.org/stable/c/28c7cfaf0c0ab17cbd7754092116fd1af45271f9 REF https://git.kernel.org/stable/c/329f0b9b48ee6ab59d1ab72fef55fe8c6463a6cf REF https://git.kernel.org/stable/c/32e937dc6e97f5ed3cdfe3fc0b2b19a05e23fa44 REF https://git.kernel.org/stable/c/54080355999381fed4a26129579a5765bab87491 REF https://git.kernel.org/stable/c/5e7ece24c5cb75a60402aad4d803c7898ea40aa9 REF https://git.kernel.org/stable/c/f228b9ae2a7e84d1153616d8e71c4236cb1f1309 REF https://git.kernel.org/stable/c/f5ef97c13165542480a6ffdbe6f09f40bbb7cbf1

Search Externally

GitHub PoC Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy