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Attack ChainAIDerived

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

  1. Access
    Lure user to malicious print job or device
  2. Delivery
    Deliver crafted data to HPLIP component
  3. Exploit
    Trigger out-of-bounds write (CWE-787)
  4. Execution
    Corrupt memory / redirect execution
  5. Impact
    Execute code or modify files on host

Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, write limits
MITRE ATT&CK

2 techniques across 2 tactics: Execution, Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Requires a host running HPLIP (HP's Linux Imaging and Printing driver stack, used with HP printers/scanners) and active user interaction (UI:A) - the victim must process attacker-influenced input such as a crafted print job, malicious device/network response, or handled file that reaches a vulnerable HPLIP component. No authentication is required (PR:N), but the mandatory user action and the HP-printing-specific deployment (only hosts with HPLIP installed and in use) meaningfully limit realistic exploitation. As an umbrella advisory, exact triggering conditions vary by individual bundled finding; consult HPSBPI04151 for component-level prerequisites.

Impact

This is an umbrella advisory (HPSBPI04151, CWE-787 out-of-bounds write) rolling up multiple externally reported HPLIP flaws whose worst-case impacts span RCE, privilege escalation, DoS, information disclosure, and file modification. The vendor CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:H/VA:L = 7.0) signals a network-reachable, unauthenticated issue that nonetheless requires active user interaction (UI:A) and yields high integrity but only low confidentiality/availability impact - consistent with a memory-corruption bug reached when the victim processes attacker-controlled data rather than a wormable remote pre-auth RCE. No EPSS score, KEV listing, or public POC is provided, so there is no evidence of active exploitation; SSVC data is absent. Net: a genuinely serious but interaction-gated, HP-printing-specific vulnerability that merits patching on affected Linux hosts but is not an emergency drive-by threat. Note the aggregate nature - the 7.0/UI:A vector describes the representative worst case, and individual bundled findings may differ; consult the HP advisory for per-component detail.

Exploit ScenarioDerived

An attacker lures a user of an HPLIP-enabled Linux host into processing malicious input - e.g., a crafted print job, malformed device/network response, or attacker-controlled file handled by an HPLIP component - triggering an out-of-bounds write. The resulting memory corruption is leveraged toward code execution or file modification in the context of the vulnerable component. No public exploit code is identified at time of analysis, and successful exploitation depends on the required user action (UI:A).

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.7% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 16, 2026

Out-of-bounds write flaws in HPLIP (HP Linux Imaging and Printing Software) can corrupt memory when a user processes attacker-influenced input such as a crafted print job, a malicious device or network response, or a handled file, with the affected product confirmed by HP and documented in advisory HPSBPI04151. No authentication is required to reach the vulnerable components, but exploitation depends on mandatory user interaction and on hosts that actually have HPLIP installed and in active printing or scanning use. Worst-case impact spans remote code execution, privilege escalation, denial of service, information disclosure, and unauthorized file modification; no public exploit code or confirmed active exploitation was identified at time of analysis.

RemediationAI

HP states it has identified and remediated these findings, so the primary action is to apply the vendor fix per advisory HPSBPI04151 (https://support.hp.com/us-en/document/ish_15646959-15646984-16/hpsbpi04151) - patch status is 'Patch available per vendor advisory'; no single exact fix version is published in the supplied data, so obtain the fixed HPLIP build from HP or your distribution's package repository and verify the installed version against the advisory rather than assuming a version number. Until upgrading is possible, reduce exposure with targeted compensating controls: avoid opening, printing, or scanning untrusted content and treat print jobs, printer/scanner network replies, and HPLIP-handled files from untrusted sources as hostile (the mandatory user interaction is the trigger, so cautious handling genuinely blocks exploitation); where practical, restrict network reachability of hosts running HPLIP and of the printers themselves to trusted segments via firewall rules, accepting that this breaks remote printing and discovery from other subnets; and run HPLIP-using services under least-privilege accounts or in constrained sandboxes (for example, confined print spoolers) to limit the integrity and code-execution impact, with the trade-off of possible breakage of plugin and device-management features. Monitor the HP advisory for component-level fixes, since this umbrella entry may be superseded by more specific patched-version guidance.

Affected VersionsENISA

HP Linux Imaging and Printing Software (HPLIP) 0 <3.26.6

Affected Packages

euvd hp_linux_imaging_and_printing_software_hplip fix: 3.26.6

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.

Technical ContextAI · show details

HPLIP is HP's open-source Linux driver and utility stack that sits between the host OS, CUPS/the printing subsystem, and HP printers and scanners, handling job submission, device discovery, plugin binaries, and scanner/status communications with network- and USB-attached devices. The assigned root-cause class is CWE-787 (out-of-bounds write): memory-corruption conditions where a write operation exceeds the bounds of its intended buffer, which in this stack can arise in parsers or handlers that consume data originating from print jobs, printer or scanner responses, or files processed on the user's behalf. The single CPE cpe:2.3:a:hp_inc.:hp_linux_imaging_and_printing_software_(hplip):*:*:*:*:*:*:*:* indicates the advisory covers the HPLIP product broadly rather than a single fixed build. This entry functions as an umbrella advisory (HPSBPI04151) aggregating multiple externally reported findings, so the precise triggering input, vulnerable component, and privilege context vary per bundled issue; the assessed vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L reflects a network-reachable, unauthenticated path that nonetheless requires the victim to trigger processing of the malicious content, with the highest assessed impact on integrity (I:H) and lower impact on confidentiality and availability.

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Severity by source

Vendor (hp) PRIMARY 7.0 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
vuln.today AI 7.6 HIGH

Network-reachable, unauthenticated OOB write requiring victim interaction (UI:R); high integrity from code/file modification, low confidentiality and availability per vendor 4.0 impacts.

3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L
4.0 AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
SUSE 7.6 HIGH
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L
Red Hat 8.8 HIGH

Primary rating from Vendor (hp).

CVSS VectorVendor: hp

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
Active
Vulnerable system: Confidentiality
Low
Vulnerable system: Integrity
High
Vulnerable system: Availability
Low
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

2
Patch available
Sep 16, 2026 - 20:18 EUVD
CVE Published
Sep 16, 2026 - 18:39 cve.org
HIGH 7.0

DescriptionCVE.org

HP has identified and remediated multiple externally reported vulnerabilities within HPLIP. The findings affect several software components that could potentially enable remote code execution, privilege escalation, denial of service, information disclosure, or unauthorized file modification under certain conditions.

Executive ViewAI

Why It Matters

HPLIP, HP's Linux imaging and printing software, contains out-of-bounds write flaws that can corrupt memory when a user processes crafted print jobs, malicious device or network responses, or handled files on systems where HPLIP is installed and actively used. A successful attack could cause remote code execution, privilege escalation, denial of service, information disclosure, or unauthorized file modification, disrupting printing and scanning operations and potentially exposing sensitive data. Leadership should prioritize inventory, isolation, and interim mitigation for affected Linux endpoints; no public exploit identified at time of analysis, and no vendor-released patch identified at time of analysis.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis; disable or remove HPLIP where not required, restrict and monitor print and scan network traffic, avoid processing untrusted print jobs, device or network responses, or files, enforce least privilege, and monitor HP advisory HPSBPI04151 for patch availability.

Threat Intelligence Overview

EPSS Score
0.7%
Top 49% exploitable
Prevalence
Medium
Standard Linux driver stack for HP printers; common but HP-hardware-scoped
Data Quality
7 sources
Confidence: High

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 0.7%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
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
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
High
Technical Impact
Partial

Priority Score

36
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +35
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Memory corruption occurs when a program writes data beyond the boundaries of allocated memory regions or accesses memory in unintended ways, violating the integrity of the process's address space.

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

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Vendor StatusVendor

SUSE

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

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