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Google Chrome CVE-2026-95372

| EUVDEUVD-2026-89227 HIGH
Use After Free (CWE-416)
2026-09-23 vendor:ubuntu GHSA-w5wg-7jf3-hw85
8.3
CVSS 3.1 · Vendor: vendor:ubuntu
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Attack ChainAIDerived

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

  1. Access
    Lure victim to malicious page
  2. Delivery
    Deliver crafted JS/DOM content
  3. Exploit
    Trigger use-after-free race
  4. Execution
    Reclaim freed object heap slot
  5. Impact
    Execute attacker-controlled code in renderer

Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Memory lifecycle management
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

Exploitation requires the victim to actively load attacker-controlled web content in a vulnerable Chrome desktop build (UI:R - the user must visit a malicious or compromised page); no prior authentication is needed (PR:N). The primary limiting factor is the AC:H rating, indicating a timing/race or specific heap-state precondition must be satisfied for the use-after-free to become reliably exploitable, which raises the bar above trivial. A patched Chrome version (September 2026 stable channel update) is available and neutralizes the flaw. The exact triggering feature is not specified in the available description.

Impact

This is a genuinely high-severity issue that warrants prompt patching. The CVSS 8.3 vector (AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H) describes a network-reachable, unauthenticated use-after-free (CWE-416) in Google Chrome that requires user interaction (visiting a malicious page) and carries a scope change (S:C), consistent with a renderer-to-broader-context memory-corruption primitive. The AC:H is notable: unlike several sibling Chrome UAFs in the same September 2026 stable batch which were rated AC:L, this one is rated AC:H, implying exploitation depends on winning a race or achieving a specific heap/timing state - a real but surmountable barrier for skilled exploit developers. Signals are incomplete: EPSS is not provided, this CVE is NOT in CISA KEV, and no public POC is referenced, so there is no evidence of active exploitation at time of analysis. The counterweight is prevalence - Chrome is ubiquitous and browser UAFs are historically among the most reliably weaponized bug classes, so treat the low-observed-exploitation signal as 'not yet' rather than 'low risk.' Note the input tag 'Information Disclosure' understates impact: with I:H and A:H this is memory corruption with code-execution potential, not a mere read primitive.

Exploit ScenarioDerived

An attacker hosts a malicious web page (or compromises an ad/iframe on a legitimate site) and lures a victim into visiting it with an unpatched Chrome build. The page triggers the use-after-free condition, and given the AC:H rating, reliably grooming the heap to win the race yields a controllable dangling pointer usable for memory corruption and likely renderer compromise. No public exploit code is referenced at time of analysis.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.4% exploitation probability (EPSS)

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AnalysisAIv2 – Sep 29, 2026

Use-after-free in Google Chrome desktop versions prior to the September 2026 stable channel update allows remote attackers to cause information disclosure and memory corruption when a victim loads attacker-controlled web content. Exploitation requires user interaction (UI:R) and a high-complexity timing or heap-state precondition (AC:H), but no authentication (PR:N); the assessed CVSS vector is AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H, yielding a base score of 8.3. A vendor patch is available in the September 2026 stable channel update, and no public exploit code or active exploitation has been identified in the provided intelligence.

Earlier versions of this analysis (1)
v1 Sep 24, 2026 - 02:53

Google Chrome on desktop is affected by an unspecified security defect that Google has already remediated through its stable channel update, with Ubuntu tracking the same issue for its packaged builds. No CVSS score or vector, no CWE, no EPSS probability, and no CISA KEV listing accompany this CVE, and no public exploit code is referenced, so the attack vector, affected component, and required privileges cannot be confirmed from the available data. Based on Chrome's usual release model, exposure is most likely limited to users running unpatched desktop builds who interact with attacker-controlled web content, and applying the fixed build removes the risk.

RemediationAI

Apply the September 2026 stable channel update for Google Chrome desktop, available via Chrome's built-in updater (chrome://settings/help) or, for managed Ubuntu systems, through the Google Chrome package source. The vendor advisory at http://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0856730748.html and Chromium issue 534997484 provide patch details; no specific workaround is documented because the vulnerable feature is not named in the available description. If immediate patching is not possible, reduce exposure by enforcing enterprise policies that block untrusted web content, enabling Enhanced Safe Browsing, and restricting high-risk browsing to an isolated browser profile or sandboxed VM; these measures reduce attack surface but do not eliminate the use-after-free risk. No public exploit code or active exploitation has been observed in the provided intelligence, so prioritization should follow standard high-severity patch timelines.

Affected VersionsENISA

Chrome 154.0.8037.57 <154.0.8037.57

Affected Packages

euvd chrome fix: 154.0.8037.57

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

CVE-2026-95372 is a CWE-416 use-after-free in Google Chrome's rendering engine. A use-after-free occurs when a program frees a heap object but later dereferences a dangling pointer, enabling memory corruption that can lead to information disclosure or arbitrary code execution. The assessed vector shows S:C (scope change) with high confidentiality and integrity impact, which is consistent with a flaw that could escape Chrome's usual renderer sandbox if successfully chained, though the independent assessment notes the exact triggering feature is unspecified. The AC:H rating indicates that a race condition or carefully groomed heap state must be reached for reliable exploitation, and UI:R confirms the victim must load attacker-controlled web content; PR:N means no prior authentication is needed. The patch is tracked in the September 2026 stable channel update and Chromium issue 534997484, with the vendor advisory at chromereleases.googleblog.com.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (vendor:ubuntu) PRIMARY 8.3 HIGH
AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
vuln.today AI 8.3 HIGH

Web-delivered UAF needs a page visit (UI:R) and race/heap grooming (AC:H); sandbox/cross-context reach gives S:C with full C/I/A memory-corruption impact.

3.1 AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
4.0 AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SUSE CRITICAL

Primary rating from Vendor (vendor:ubuntu).

CVSS VectorVendor: vendor:ubuntu

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
CVSS changed
Sep 29, 2026 - 19:22 NVD
8.3 (HIGH)
CVE Published
Sep 23, 2026 - 00:00 cve.org
MEDIUM

DescriptionCVE.org

[Unknown description]

Executive ViewAI

Why It Matters

Google Chrome desktop versions prior to the September 2026 stable channel update contain a high-severity memory safety flaw that could allow a malicious webpage to expose data or corrupt memory on an affected endpoint. Because Chrome is widely deployed across the workforce, unpatched systems create broad organizational exposure even though exploitation requires a user to visit attacker-controlled content and meet a high-complexity precondition. No public exploit identified at time of analysis, so leadership should prioritize remediation without treating this as an active incident.

Business Impact: High
Compensating Controls

Apply vendor patch.

Threat Intelligence Overview

EPSS Score
0.4%
Top 71% exploitable
Prevalence
Ubiquitous
Google Chrome is among the most widely deployed browsers worldwide
Data Quality
4 sources
Confidence: Medium

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 0.4%
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· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact
High

Priority Score

42
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +42
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Use-after-free vulnerabilities occur when a program continues to access memory through a pointer after that memory has been deallocated.

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.

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Vendor StatusVendor

SUSE

Severity: Critical
Product Status
SUSE Package Hub 15 SP7 Fixed
openSUSE Leap 16.0 Fixed
openSUSE Tumbleweed Fixed
SUSE Package Hub 15 SP7 Affected

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