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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 at

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CRITICAL 9.8REMOTEWATCHLISTUPGRADEUPGRADEMITIGATE

CVE-2010-4203 is a critical-severity flaw (CVSS 9.8) affecting chrome, libvpx, enterprise linux desktop. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

  • Critical severity
  • EPSS top 8%: very likely to be exploited
  • Public exploit reference
  • Remotely exploitable, no login, no user action
  • On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score9.8 (Critical)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance4.6% (top 8%)
CISA exploited listNo
WeaknessCWE-190
Published2010-11-06
Last modified2026-06-16
Publisher (CNA): MITRE · Vendor: google · redhat · webmproject

Share: LinkedIn · X · Reddit

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

google chrome UPGRADE
Affected: < 7.0.517.44
Fixed in: 7.0.517.44
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy chrome || rpm -q chrome || chrome --version
2. UPGRADE to 7.0.517.44 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade chrome
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade chrome
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
webmproject libvpx UPGRADE
Affected: < 0.9.5
Fixed in: 0.9.5
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy libvpx || rpm -q libvpx || libvpx --version
2. UPGRADE to 0.9.5 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade libvpx
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade libvpx
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
redhat enterprise linux desktop MITIGATE
Affected: 6.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 6.0
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
redhat enterprise linux server MITIGATE
Affected: 6.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 6.0
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
redhat enterprise linux workstation MITIGATE
Affected: 6.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 6.0
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.
Fedora 46 · rust-tokio · FIXED · 1.54.1-1.fc46 · FEDORA-2026-e7fd815169 · source
sudo dnf upgrade --advisory=FEDORA-2026-e7fd815169
Fedora ELN · libopenraw · FIXED · 0.3.7-2.eln159 · FEDORA-2026-3fa115dd38 · source
sudo dnf upgrade --advisory=FEDORA-2026-3fa115dd38
Debian 12 · libvpx · FIXED · 0.9.1-2
sudo apt update && sudo apt install --only-upgrade libvpx dpkg --compare-versions "$(dpkg-query -W -f='${Version}' libvpx)" ge "0.9.1-2" && echo PATCHED || echo STILL-VULNERABLE
Debian 13 · libvpx · FIXED · 0.9.1-2
sudo apt update && sudo apt install --only-upgrade libvpx dpkg --compare-versions "$(dpkg-query -W -f='${Version}' libvpx)" ge "0.9.1-2" && echo PATCHED || echo STILL-VULNERABLE
RHEL 6 · libvpx · FIXED · libvpx-0.9.0-8.el6_0
sudo dnf upgrade --advisory=RHSA-2010:0999 rpm -q libvpx
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2010-4203?

chrome: upgrade to 7.0.517.44; libvpx: upgrade to 0.9.5; enterprise linux desktop: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2010-4203 being exploited?

CVE-2010-4203 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2010-4203 affect?

CVE-2010-4203 affects chrome, libvpx, enterprise linux desktop. Severity is critical (CVSS 9.8). 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.

How urgent is CVE-2010-4203?

Priority 72/100. Critical severity; EPSS top 8%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Google Chrome vulnerabilities

Related CVEs

References

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