CVE-2026-2773 (GCVE-0-2026-2773)

Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-06-30 12:06
VLAI
Title
Incorrect boundary conditions in the Web Audio component
Summary
Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
URL Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=2014832
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-2026-2773 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2442319 issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:3984 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3976 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4260 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3361 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3517 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3338 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3515 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3492 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4432 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3491 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3980 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3495 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3979 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3494 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4022 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3493 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3983 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4152 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3978 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3496 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3981 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3497 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3982 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3339 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3516 vendor-advisoryx_refsource_REDHAT
Impacted products
Vendor Product Version
Mozilla Firefox Unaffected: 115.33 , ≤ 115.* (rpm)
Unaffected: 140.8 , ≤ 140.* (rpm)
Unaffected: 148 , ≤ * (rpm)
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Mozilla Thunderbird Unaffected: 140.8 , ≤ 140.* (rpm)
Unaffected: 148 , ≤ * (rpm)
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Red Hat Red Hat Enterprise Linux Server (v. 7 ELS)     cpe:/o:redhat:rhel_els:7
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Red Hat Red Hat Enterprise Linux AppStream EUS (v. 10.0)     cpe:/o:redhat:enterprise_linux_eus:10.0
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Red Hat Red Hat Enterprise Linux AppStream (v. 10)     cpe:/o:redhat:enterprise_linux:10.1
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Red Hat Red Hat Enterprise Linux AppStream (v. 8)     cpe:/a:redhat:enterprise_linux:8::appstream
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Red Hat Red Hat Enterprise Linux AppStream AUS (v. 8.2)     cpe:/a:redhat:rhel_aus:8.2::appstream
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Red Hat Red Hat Enterprise Linux AppStream AUS (v.8.4)     cpe:/a:redhat:rhel_aus:8.4::appstream
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Red Hat Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)     cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
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Red Hat Red Hat Enterprise Linux AppStream AUS (v.8.6)     cpe:/a:redhat:rhel_aus:8.6::appstream
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Red Hat Red Hat Enterprise Linux AppStream E4S (v.8.6)     cpe:/a:redhat:rhel_e4s:8.6::appstream
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Red Hat Red Hat Enterprise Linux AppStream TUS (v.8.6)     cpe:/a:redhat:rhel_tus:8.6::appstream
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Red Hat Red Hat Enterprise Linux AppStream E4S (v.8.8)     cpe:/a:redhat:rhel_e4s:8.8::appstream
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Red Hat Red Hat Enterprise Linux AppStream TUS (v.8.8)     cpe:/a:redhat:rhel_tus:8.8::appstream
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Red Hat Red Hat Enterprise Linux AppStream E4S (v.9.0)     cpe:/a:redhat:rhel_e4s:9.0::appstream
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Red Hat Red Hat Enterprise Linux AppStream E4S (v.9.2)     cpe:/a:redhat:rhel_e4s:9.2::appstream
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Red Hat Red Hat Enterprise Linux AppStream EUS (v.9.4)     cpe:/a:redhat:rhel_eus:9.4::appstream
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Red Hat Red Hat Enterprise Linux AppStream EUS (v.9.6)     cpe:/a:redhat:rhel_eus:9.6::appstream
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Red Hat Red Hat Enterprise Linux AppStream (v. 9)     cpe:/a:redhat:enterprise_linux:9::appstream
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Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
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Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
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Credits
Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic
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Tags
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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.