8.8

CVE-2026-103631: google chrome Heap-based Buffer Overflow

CVSS: 8.8v3.1HighAnalyzed
AliasesDEBIAN-CVE-2026-103631
Published 02-10-2026Last modified 06-10-2026
Open JSON

Vulnerability summary

CVE-2026-103631 is a high (CVSS 8.8) Heap-based Buffer Overflow vulnerability in google chrome. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 38.7% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.46%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 2
OPENSUSE-SU-2026:12063-1OPENSUSE-SU-2026:22023-1

Timeline

  1. 02-10-2026
    PublishedVulnerability first disclosed.
  2. 06-10-2026
    Last modifiedVulnerability information updated.

Description

Buffer overflow in WebRTC in Google Chrome prior to 154.0.8037.97 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.46%

Chance of exploitation in the next 30 days

Percentile

39%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

03-10-202621-10-2026
EPSS score
0.46%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • chromiumAll versions (No fix recorded) | < 155.0.8059.39-1~deb12u1 | < 155.0.8059.39-1~deb13u1
Google1 product
  • chrome≥ 154.0.8037.97, < 154.0.8037.97 | < 154.0.8037.97

2 vendors · 2 products

References

3 links