synced 2 MIN AGO
01 Record

CVE-2026-2447

Heap buffer overflow in libvpx

HighPUBLISHEDCNA: mozilla
CNA base score8.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
View raw JSON

02 Description

Heap buffer overflow in libvpx

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.69% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 52.5% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-07-15.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-02-16 14:13Z8 MO AGO
Last updated
2026-07-15 02:49Z3 MO AGO
Reserved
2026-02-13
Assigning CNA
mozilla
Record state
PUBLISHED
Severity
High (CVSS 8.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-122Heap-based Buffer OverflowVariant
Data version
5.2
Document digest
ba268c6c9a315ee5050f40cef910fbb3c2f05e5dd70205e199c44c6a945a3f6f

05 Affected products

VendorProductVersionsPlatforms
MozillaFirefoxNot specified—
MozillaThunderbirdNot specified—

06 References

07 Fixed in

AlmaLinux 8

  • firefox
    Fixed in 140.8.0-2.el8_10.alma.1
  • libvpx
    Fixed in 1.7.0-13.el8_10
  • libvpx-devel
    Fixed in 1.7.0-13.el8_10
  • thunderbird
    Fixed in 140.8.0-1.el8_10.alma.1

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 9

  • firefox
    Fixed in 140.8.0-2.el9_7.alma.1
  • firefox-x11
    Fixed in 140.8.0-2.el9_7.alma.1
  • libvpx
    Fixed in 1.9.0-10.el9_7
  • libvpx-devel
    Fixed in 1.9.0-10.el9_7
  • thunderbird
    Fixed in 140.8.0-1.el9_7.alma.1

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 10

  • firefox
    Fixed in 140.8.0-2.el10_1
  • libvpx
    Fixed in 1.14.1-6.el10_1
  • libvpx-devel
    Fixed in 1.14.1-6.el10_1
  • thunderbird
    Fixed in 140.8.0-2.el10_1.alma.1

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 8

  • firefox
    Fixed in 140.8.0-2.el8_10.alma.1
  • libvpx
    Fixed in 1.7.0-13.el8_10
  • libvpx-devel
    Fixed in 1.7.0-13.el8_10
  • thunderbird
    Fixed in 140.8.0-1.el8_10.alma.1

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 9

  • firefox
    Fixed in 140.8.0-2.el9_7.alma.1
  • firefox-x11
    Fixed in 140.8.0-2.el9_7.alma.1
  • libvpx
    Fixed in 1.9.0-10.el9_7
  • libvpx-devel
    Fixed in 1.9.0-10.el9_7
  • thunderbird
    Fixed in 140.8.0-1.el9_7.alma.1

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 10

  • firefox
    Fixed in 140.8.0-2.el10_1
  • libvpx
    Fixed in 1.14.1-6.el10_1
  • libvpx-devel
    Fixed in 1.14.1-6.el10_1
  • thunderbird
    Fixed in 140.8.0-2.el10_1.alma.1

Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • firefox-esr
    Fixed in 140.8.0esr-1
  • libvpx
    Fixed in 1.12.0-1+deb12u5
  • thunderbird
    Fixed in 1:140.8.0esr-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • firefox-esr
    Fixed in 140.8.0esr-1
  • libvpx
    Fixed in 1.15.0-2.1+deb13u1
  • thunderbird
    Fixed in 1:140.8.0esr-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • firefox-esr
    Fixed in 140.8.0esr-1
  • libvpx
    Fixed in 1.16.0-3
  • thunderbird
    Fixed in 1:140.8.0esr-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • libvpx
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • libvpx
    Fixed in 1.11.0-2ubuntu2.5
  • thunderbird
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • libvpx
    Fixed in 1.14.0-1ubuntu2.3

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 25.10

  • libvpx
    Fixed in 1.15.0-2.1ubuntu0.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.04 LTS

  • libvpx
    Fixed in 1.16.0-2ubuntu1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 14.04 LTS

  • libvpx
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 16.04 LTS

  • libvpx
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

  • libvpx
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.