Buffer overflow in Google Chrome

CVE-2025-0434

Out of bounds memory access in V8 in Google Chrome prior to 132.0.6834.83 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.059 (93.0th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-0434: held from 0.059 to 0.059.

EPSS over last 30 days · oldest: 0.059 · newest: 0.059 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-0434?
CVE-2025-0434 is a high-severity vulnerability in Google Chrome, classified under Heap-based Buffer Overflow. CVSS score: 8.8/10. Published 2025-01-15.
How severe is CVE-2025-0434?
High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2025-0434 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.