CVE-2026-8091 (GCVE-0-2026-8091)

Vulnerability from cvelistv5 – Published: 2026-05-07 12:45 – Updated: 2026-07-22 12:08
VLAI
Title
Incorrect boundary conditions in the Audio/Video: Playback component
Summary
Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, Thunderbird 140.10.1, and Firefox ESR 115.35.2.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-754 - Improper Check for Unusual or Exceptional Conditions
  • CWE-805 - Buffer Access with Incorrect Length Value
Assigner
References
URL Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=2029301
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://access.redhat.com/security/cve/CVE-2026-8091 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2467699 issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:26551 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:27715 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26539 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26629 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26270 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26606 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26536 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26630 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26268 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26491 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26269 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26493 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26174 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26492 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26521 vendor-advisoryx_refsource_REDHAT
Impacted products
Vendor Product Version
Mozilla Firefox Unaffected: 115.35.2 , ≤ 115.* (rpm)
Unaffected: 140.10.1 , ≤ 140.* (rpm)
Unaffected: 150 , ≤ * (rpm)
Create a notification for this product.
Mozilla Thunderbird Unaffected: 140.10.1 , ≤ 140.* (rpm)
Unaffected: 150 , ≤ * (rpm)
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:140.11.0-1.el10_0 , < * (rpm)
    cpe:/o:redhat:enterprise_linux_eus:10.0
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:140.11.0-1.el7_9 , < * (rpm)
    cpe:/o:redhat:rhel_els:7
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:140.11.0-1.el8_4 , < * (rpm)
    cpe:/a:redhat:rhel_aus:8.4
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:140.11.0-1.el8_4 , < * (rpm)
    cpe:/a:redhat:rhel_eus_long_life:8.4
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:140.11.0-1.el8_6 , < * (rpm)
    cpe:/a:redhat:rhel_aus:8.6
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:140.11.0-1.el8_6 , < * (rpm)
    cpe:/a:redhat:rhel_eus_long_life:8.6
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:140.11.0-1.el8_8 , < * (rpm)
    cpe:/a:redhat:rhel_tus:8.8
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:140.11.0-1.el8_8 , < * (rpm)
    cpe:/a:redhat:rhel_e4s:8.8
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:140.11.0-1.el9_2 , < * (rpm)
    cpe:/a:redhat:rhel_e4s:9.2
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:140.11.0-1.el9_4 , < * (rpm)
    cpe:/a:redhat:rhel_e4s:9.4
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:140.11.0-1.el9_6 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.6
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
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Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
 Create a notification for this product.
Credits
The Mozilla Fuzzing Team
Show details on NVD website
To clipboard 

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}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.