CVE-2025-5283: Use after free in libvpx

Published May 22, 2025
·
Updated

A double-free could have occurred in vpxcodecencinitmulti after a failed allocation when initializing the encoder for WebRTC. This could have caused memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 139, Firefox ESR < 115.24, and Firefox ESR < 128.11.

Other sources

A double-free could have occurred in vpxcodecencinitmulti after a failed allocation when initializing the encoder for WebRTC. This could have caused memory corruption and a potentially exploitable crash.

— Mozilla

Chromium: CVE-2025-5283 Use after free in libvpx

— Microsoft

This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.

— Microsoft

Use after free in libvpx in Google Chrome prior to 137.0.7151.55 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)

— NVD

Credit

Mozilla

Affected Software

17 affected componentsFixes available
Google Chrome<137.0.7151.55
137.0.7151.55
Microsoft Edge<137.0.3296.52
Microsoft Edge (Chromium-based)
Patch available
Mozilla Firefox ESR<115.24
115.24
Mozilla Thunderbird<139
139
Google Chrome<137.0.7151.55
Mozilla Firefox ESR<128.11
128.11
Mozilla Firefox<139
139
Mozilla Thunderbird<128.11
128.11
alpine/qt6-qtwebengine<6.8.3-r1
6.8.3-r1
alpine/qt6-qtwebengine<6.8.3-r1
6.8.3-r1
alpine/qt6-qtwebengine<6.8.3-r1
6.8.3-r1
debian/chromium
150.0.7871.100-1~deb12u1156.0.8078.79-1~deb12u1150.0.7871.181-1~deb13u1156.0.8078.79-1~deb13u1156.0.8078.47-1156.0.8078.79-1
debian/firefox
159.0.1-1
debian/firefox-esr
140.12.0esr-1~deb12u1153.6.0esr-1~deb12u2140.15.0esr-1~deb13u1153.6.0esr-1~deb13u1153.5.1esr-1153.6.0esr-1
debian/libvpx
1.12.0-1+deb12u51.15.0-2.1+deb13u11.17.0-1
debian/thunderbird
1:140.12.0esr-1~deb12u11:153.6.0esr-1~deb12u21:140.12.0esr-1~deb13u11:153.6.0esr-1~deb13u11:153.5.0esr-11:153.6.0esr-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Google Chrome to a version that resolves this vulnerability.

    Fixed in 137.0.7151.55
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 115.24
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 139
  4. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 128.11
  5. Upgrade

    Upgrade alpine/qt6-qtwebengine to a version that resolves this vulnerability.

    Fixed in 6.8.3-r1
  6. Upgrade

    Upgrade debian/chromium to a version that resolves this vulnerability.

    Fixed in 150.0.7871.100-1~deb12u1Fixed in 156.0.8078.79-1~deb12u1Fixed in 150.0.7871.181-1~deb13u1Fixed in 156.0.8078.79-1~deb13u1Fixed in 156.0.8078.47-1Fixed in 156.0.8078.79-1
  7. Upgrade

    Upgrade debian/firefox to a version that resolves this vulnerability.

    Fixed in 159.0.1-1
  8. Upgrade

    Upgrade debian/firefox-esr to a version that resolves this vulnerability.

    Fixed in 140.12.0esr-1~deb12u1Fixed in 153.6.0esr-1~deb12u2Fixed in 140.15.0esr-1~deb13u1Fixed in 153.6.0esr-1~deb13u1Fixed in 153.5.1esr-1Fixed in 153.6.0esr-1
  9. Upgrade

    Upgrade debian/libvpx to a version that resolves this vulnerability.

    Fixed in 1.12.0-1+deb12u5Fixed in 1.15.0-2.1+deb13u1Fixed in 1.17.0-1
  10. Upgrade

    Upgrade debian/thunderbird to a version that resolves this vulnerability.

    Fixed in 1:140.12.0esr-1~deb12u1Fixed in 1:153.6.0esr-1~deb12u2Fixed in 1:140.12.0esr-1~deb13u1Fixed in 1:153.6.0esr-1~deb13u1Fixed in 1:153.5.0esr-1Fixed in 1:153.6.0esr-1
  11. Upgrade

    Upgrade Mozilla Firefox to a version that resolves this vulnerability.

    Fixed in 139
  12. Upgrade

    Upgrade Mozilla Firefox ESR to a version that resolves this vulnerability.

    Fixed in 115.24
  13. Upgrade

    Upgrade Mozilla Firefox ESR to a version that resolves this vulnerability.

    Fixed in 128.11

Event History

May 22, 2025
CVE Published
12:00 AM
May 27, 2025
Data Sourced
via Mozilla·12:00 AM
DescriptionSeverityAffected Software
Data Sourced
via Red Hat·01:01 PM
DescriptionSeverityAffected Software
CVE Published
via MITRE·08:43 PM
Data Sourced
via MITRE·08:43 PM
DescriptionWeakness
Data Sourced
via NVD·09:15 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·09:15 PM
DescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2025-5283?

The severity of CVE-2025-5283 is classified as Medium.

2

How do I fix CVE-2025-5283?

To fix CVE-2025-5283, update Google Chrome to version 137.0.7151.55 or later.

3

What type of vulnerability is CVE-2025-5283?

CVE-2025-5283 is a Use after free vulnerability in libvpx in Google Chrome.

4

Can CVE-2025-5283 be exploited remotely?

Yes, CVE-2025-5283 can be exploited by a remote attacker via a crafted HTML page.

5

Which versions of Google Chrome are affected by CVE-2025-5283?

Google Chrome versions prior to 137.0.7151.55 are affected by CVE-2025-5283.

Company

Resources

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