CVE-2016-5257 | Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 49.0, Firefox ESR 45.x before 45.4 and Thunderbird < 45.4 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 49.0, Firefox ESR 45.x before 45.4 and Thunderbird < 45.4 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.
- 🔗 bugzilla.mozilla.org/show_bug.cgi
- 🔗 www.oracle.com/technetwork/topics/security/linuxbulletin…
- 🔗 bugzilla.mozilla.org/show_bug.cgi
- 🔗 www.mozilla.org/security/announce/2016/mfsa2016-85.html
- 🔗 www.mozilla.org/security/advisories/mfsa2016-86/
- 🔗 bugzilla.mozilla.org/show_bug.cgi
- 🔗 bugzilla.mozilla.org/show_bug.cgi
- 🔗 www.debian.org/security/2016/dsa-3674
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| Tier | 2026-08-29 | 2026-09-15 |
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| ≥10 % | 3 | 0 |
| <10 % | 304 | 300 |
CVE-2016-5257 | Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 49.0, Firefox ESR 45.x before 45.4 and Thunderbird < 45.4 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 49.0, Firefox ESR 45.x before 45.4 and Thunderbird < 45.4 allow remote attackers to cause a denial of service (memory corruption and application crash) or