What is CVE-2010-4203?

CVE-2010-4203 is a critical-severity vulnerability in Google Chrome, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2010-11-06.

How severe is CVE-2010-4203?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Integer overflow in Google Chrome

CVE-2010-4203

WebM libvpx (aka the VP8 Codec SDK) before 0.9.5, as used in Google Chrome before 7.0.517.44, allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via invalid frames.

Vulnerability class: Integer Overflow

Published 2010-11-06 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.046 (91.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.046 · newest: 0.046 · change: 0.000

Affected products

Google Chrome
Webmproject Libvpx
Red Hat Enterprise Linux Desktop — versions 6.0
Red Hat Enterprise Linux Server — versions 6.0
Red Hat Enterprise Linux Workstation — versions 6.0

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

secunia.com/advisories/42690 (Broken Link, third-party-advisory)
oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:12198 (signature, Third Party Advisory, vdb-entry)
googlechromereleases.blogspot.com/2010/11/stable-channel-update.html (Release Notes, Vendor Advisory)
security.gentoo.org/glsa/glsa-201101-03.xml (vendor-advisory, Third Party Advisory)
rhn.redhat.com/errata/RHSA-2010-0999.html (vendor-advisory, Third Party Advisory)
secunia.com/advisories/42109 (Vendor Advisory, third-party-advisory)
review.webmproject.org/gitweb
code.google.com/p/chromium/issues/detail (Exploit, Mailing List, Issue Tracking, Vendor Advisory)
secunia.com/advisories/42118 (Broken Link, third-party-advisory)
www.vupen.com/english/advisories/2011/0115 (Permissions Required, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2010-4203?: CVE-2010-4203 is a critical-severity vulnerability in Google Chrome, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2010-11-06.
How severe is CVE-2010-4203?: Critical severity. CVSS v3 base score is 9.8 out of 10.