What is the CVSS score of CVE-2026-1861?

CVE-2026-1861 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Which versions of Chrome are affected by CVE-2026-1861?

A critical heap buffer overflow vulnerability in Chrome's libvpx library (CVE-2026-1861) allows remote attackers to execute arbitrary code through malicious web pages, affecting all users running…. A patch is available.

How to fix or mitigate CVE-2026-1861?

Within 24 hours: Identify and inventory all Chrome deployments across the organization; communicate vulnerability alert to all users and restrict Chrome usage to business-critical functions only. Within 7 days: Implement browser isolation technology or restrict access to high-risk websites; deploy network-level controls to block malicious content delivery; monitor for active exploitation attempts. Within 30 days: Apply the vendor patch immediately upon release; conduct forensic analysis for signs of compromise; review and strengthen web filtering and endpoint detection capabilities.

Chrome CVE-2026-1861

HIGH

Heap-based Buffer Overflow (CWE-122)

2026-02-03 chrome-cve-admin@google.com

Buffer Overflow Chrome Google Suse

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SUSE

HIGH

qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Patch released

Apr 09, 2026 - 14:30 nvd

Patch available

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

CVE Published

Feb 03, 2026 - 21:16 nvd

HIGH 8.8

DescriptionCVE.org

Heap buffer overflow in libvpx in Google Chrome prior to 144.0.7559.132 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

AnalysisAI

Heap buffer overflow in Chrome's libvpx video codec allows remote attackers to achieve arbitrary code execution through a malicious webpage, requiring only user interaction to trigger exploitation. The vulnerability affects Chrome versions prior to 144.0.7559.132 and currently lacks a patch. With a CVSS score of 8.8, this high-severity flaw poses significant risk to users who visit compromised or attacker-controlled websites.

Technical ContextAI

Classified as CWE-122 (Heap-based Buffer Overflow). Affects Chrome. Heap buffer overflow in libvpx in Google Chrome prior to 144.0.7559.132 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

RemediationAI

Monitor vendor advisories for a patch. Enable ASLR, DEP/NX, and stack canaries where possible. Restrict network access to the affected service where possible.