Critical severity9.8NVD Advisory· Published Feb 24, 2026· Updated Apr 13, 2026
CVE-2026-2773
CVE-2026-2773
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
35cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*+ 3 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*range: <148.0
- cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*range: <115.33.0
- (no CPE)range: <115.33 (for ESR 115 series) and <140.8 (for ESR 140 series)
- (no CPE)range: <148
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*+ 2 more
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*range: <148.0
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*range: <140.8.0
- (no CPE)range: <148
- osv-coords28 versionspkg:apk/chainguard/firefoxpkg:apk/chainguard/firefox-esrpkg:apk/wolfi/firefoxpkg:rpm/almalinux/firefoxpkg:rpm/almalinux/firefox-x11pkg:rpm/almalinux/thunderbirdpkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Tumbleweedpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP7pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP7pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP7
< 148.0-r0+ 27 more
- (no CPE)range: < 148.0-r0
- (no CPE)range: < 148.0-r0
- (no CPE)range: < 148.0-r0
- (no CPE)range: < 140.8.0-2.el8_10.alma.1
- (no CPE)range: < 140.8.0-2.el9_7.alma.1
- (no CPE)range: < 140.8.0-1.el8_10.alma.1
- (no CPE)range: < 140.8.0-1.1
- (no CPE)range: < 140.8.0-150200.152.222.1
- (no CPE)range: < 140.8.0-160000.1.1
- (no CPE)range: < 148.0-1.1
- (no CPE)range: < 140.8.0-150200.8.260.1
- (no CPE)range: < 140.8.1-bp160.1.1
- (no CPE)range: < 140.8.0-1.1
- (no CPE)range: < 140.8.0-150200.152.222.1
- (no CPE)range: < 140.8.0-150200.152.222.1
- (no CPE)range: < 140.8.0-150200.152.222.1
- (no CPE)range: < 140.8.0-150200.152.222.1
- (no CPE)range: < 140.8.0-150200.152.222.1
- (no CPE)range: < 140.8.0-112.301.1
- (no CPE)range: < 140.8.0-150200.152.222.1
- (no CPE)range: < 140.8.0-150200.152.222.1
- (no CPE)range: < 140.8.0-150200.152.222.1
- (no CPE)range: < 140.8.0-150200.152.222.1
- (no CPE)range: < 140.8.0-150200.152.222.1
- (no CPE)range: < 140.8.0-150200.152.222.1
- (no CPE)range: < 140.8.0-112.301.1
- (no CPE)range: < 140.8.0-150200.8.260.1
- (no CPE)range: < 140.8.0-150200.8.260.1
Patches
Vulnerability mechanics
References
6- www.mozilla.org/security/advisories/mfsa2026-13/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2026-14/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2026-15/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2026-16/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2026-17/nvdVendor Advisory
- bugzilla.mozilla.org/show_bug.cginvdIssue TrackingPermissions Required
News mentions
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