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🛡️ MGASA-2026-0052 — firefox (CVE-2026-2757 +36 more)

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Updated rootcerts, nss & firefox packages fix security vulnerabilities

Incorrect boundary conditions in the WebRTC: Audio/Video component.

(CVE-2026-2757)

Use-after-free in the JavaScript: GC component. (CVE-2026-2758)

Incorrect boundary conditions in the Graphics: ImageLib component.

(CVE-2026-2759)

Sandbox escape due to incorrect boundary conditions in the Graphics:

WebRender component. (CVE-2026-2760)

Sandbox escape in the Graphics: WebRender component. (CVE-2026-2761)

Integer overflow in the JavaScript: Standard Library component.

(CVE-2026-2762)

Use-after-free in the JavaScript Engine component. (CVE-2026-2763)

JIT miscompilation, use-after-free in the JavaScript Engine: JIT

component. (CVE-2026-2764)

Use-after-free in the JavaScript Engine component. (CVE-2026-2765)

Use-after-free in the JavaScript Engine: JIT component. (CVE-2026-2766)

Use-after-free in the JavaScript: WebAssembly component. (CVE-2026-2767)

Sandbox escape in the Storage: IndexedDB component. (CVE-2026-2768)

Use-after-free in the Storage: IndexedDB component. (CVE-2026-2769)

Use-after-free in the DOM: Bindings (WebIDL) component. (CVE-2026-2770)

Undefined behavior in the DOM: Core & HTML component. (CVE-2026-2771)

Use-after-free in the Audio/Video: Playback component. (CVE-2026-2772)

Incorrect boundary conditions in the Web Audio component.

(CVE-2026-2773)

Integer overflow in the Audio/Video component. (CVE-2026-2774)

Mitigation bypass in the DOM: HTML Parser component. (CVE-2026-2775)

Sandbox escape due to incorrect boundary conditions in the Telemetry

component in External Software. (CVE-2026-2776)

Privilege escalation in the Messaging System component. (CVE-2026-2777)

Sandbox escape due to incorrect boundary conditions in the DOM: Core &

HTML component. (CVE-2026-2778)

Incorrect boundary conditions in the Networking: JAR component.

(CVE-2026-2779)

Privilege escalation in the Netmonitor component. (CVE-2026-2780)

Integer overflow in the Libraries component in NSS. (CVE-2026-2781)

Privilege escalation in the Netmonitor component. (CVE-2026-2782)

Information disclosure due to JIT miscompilation in the JavaScript

Engine: JIT component. (CVE-2026-2783)

Mitigation bypass in the DOM: Security component. (CVE-2026-2784)

Invalid pointer in the JavaScript Engine component. (CVE-2026-2785)

Use-after-free in the JavaScript Engine component. (CVE-2026-2786)

Use-after-free in the DOM: Window and Location component.

(CVE-2026-2787)

Incorrect boundary conditions in the Audio/Video: GMP component.

(CVE-2026-2788)

Use-after-free in the Graphics: ImageLib component. (CVE-2026-2789)

Same-origin policy bypass in the Networking: JAR component.

(CVE-2026-2790)

Mitigation bypass in the Networking: Cache component. (CVE-2026-2791)

Memory safety bugs fixed in Firefox ESR 140.8, Thunderbird ESR 140.8,

Firefox 148 and Thunderbird 148. (CVE-2026-2792)

Memory safety bugs fixed in Firefox ESR 115.33, Firefox ESR 140.8,

Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. (CVE-2026-2793)

Affected software

MGASA-2026-0052 is recorded against 4 packages.

  • firefox (fixed in 140.8.0-1.mga9)
  • firefox-l10n (fixed in 140.8.0-1.mga9)
  • nss (fixed in 3.121.0-1.mga9)
  • rootcerts (fixed in 20260206.00-1.mga9)

Timeline and source

Published on 9 March 2026 and last revised on 16 April 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

advisories.mageia.org (Advisory)
bugs.mageia.org (Report)
firefox-source-docs.mozilla.org (Web)
www.firefox.com (Web)
www.mozilla.org (Advisory)

Other advisories for this package

firefox has other advisories on record. If you are patching this one, these are worth checking on the same host:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-03-09
Updated 2026-08-20
Modified 2026-04-16
Fix URL N/A

Affected Packages

Software From version Fixed in
firefox — 140.8.0-1.mga9
firefox-l10n — 140.8.0-1.mga9
nss — 3.121.0-1.mga9
rootcerts — 20260206.00-1.mga9

Similar Threats

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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