🛡️ OESA-2026-1471 — firefox (CVE-2026-2447 +37 more)
Description
firefox security update
Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. %if 0 %global moz_debug_prefix /lib/debug %global moz_debug_dir /lib/debug/ %global uname_m %(uname -m) %global symbols_file_name -.en-US.-%(uname.crashreporter-symbols.zip %global symbols_file_path /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip %global _find_debuginfo_opts -p /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip -o debugcrashreporter.list %global crashreporter_pkg_name mozilla-crashreporter--debuginfo
Security Fix(es):
Heap buffer overflow vulnerability exists in libvpx component. This vulnerability affects Firefox < 147.0.4, Firefox ESR < 140.7.1, and Firefox ESR < 115.32.1.(CVE-2026-2447)
Incorrect boundary conditions in the WebRTC: Audio/Video component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2757)
Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2758)
Incorrect boundary conditions in the Graphics: ImageLib component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2759)
Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2760)
Sandbox escape in the Graphics: WebRender component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2761)
Integer overflow in the JavaScript: Standard Library component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2762)
Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2763)
JIT miscompilation, use-after-free in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2764)
Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2765)
Use-after-free in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2766)
Use-after-free in the JavaScript: WebAssembly component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2767)
Sandbox escape in the Storage: IndexedDB component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2768)
A use-after-free vulnerability exists in the Storage: IndexedDB component of Mozilla Firefox, Firefox ESR, and Thunderbird. This vulnerability occurs when the program continues to reference a memory area after it has been freed, which can lead to program crashes, the use of unexpected values, or the execution of arbitrary code. This vulnerability poses a threat to confidentiality, integrity, and availability.(CVE-2026-2769)
Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2770)
Undefined behavior in the DOM: Core & HTML component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2771)
Use-after-free in the Audio/Video: Playback component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2772)
Incorrect boundary conditions in the Web Audio component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2773)
Integer overflow in the Audio/Video component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2774)
Mitigation bypass in the DOM: HTML Parser component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.
Affected software
OESA-2026-1471 is recorded against 1 package.
- firefox (fixed in 140.8.0-1.oe2203sp4)
Timeline and source
Published on 28 February 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
www.openeuler.org (Advisory)
nvd.nist.gov (Advisory)
nvd.nist.gov (Advisory)
nvd.nist.gov (Advisory)
nvd.nist.gov (Advisory)
nvd.nist.gov (Advisory)
nvd.nist.gov (Advisory)
nvd.nist.gov (Advisory)
nvd.nist.gov (Advisory)
nvd.nist.gov (Advisory)
nvd.nist.gov (Advisory)
nvd.nist.gov (Advisory)
nvd.nist.gov (Advisory)
nvd.nist.gov (Advisory)
nvd.nist.gov (Advisory)
Details
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| firefox | — | 140.8.0-1.oe2203sp4 |
References
Similar Threats
- Unknown ALSA-2022:8580
- Unknown ALSA-2022:8554
- Unknown ALSA-2022:7070
- Unknown ALSA-2022:7071
- Unknown ALSA-2022:7020
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