SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2025-5419

Google Chromium V8 Out-of-Bounds Read and Write Vulnerability

KEVHIGH 8.8EPSS 7.49%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 26 June 2025). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

Out of bounds read and write in V8 in Google Chrome prior to 137.0.7151.68 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
7.49% probability · 94th percentile
Public exploits
None in Exploit-DB
CISA KEV
Listed 5 June 2025 · due 26 June 2025
Weakness
CWE-125, CWE-787
Affected
google/chrome · microsoft/edge chromium
Source
chrome-cve-admin@google.com
EPSS trend
0%5%10%30 October 2026: 7.49%30 October 202630 October 2026

EPSS 7.5% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

CISA notes

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. https://chromereleases.googleblog.com/2025/06/stable-channel-update-for-desktop.html; https://nvd.nist.gov/vuln/detail/CVE-2025-5419",

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.