CVE-2016-5257
9.8
CRITICAL · CVSS 3.0 · EPSS 4.2% (pctl 91)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 4.24% — more likely to be exploited than 91% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2016-09-22 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| mozilla | firefox |
References
- http://rhn.redhat.com/errata/RHSA-2016-1912.html
- http://rhn.redhat.com/errata/RHSA-2016-1985.html
- http://www.debian.org/security/2016/dsa-3674
- http://www.debian.org/security/2016/dsa-3690
- http://www.mozilla.org/security/announce/2016/mfsa2016-85.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
- http://www.securityfocus.com/bid/93049
- http://www.securitytracker.com/id/1036852
- https://bugzilla.mozilla.org/show_bug.cgi?id=1277213
- https://bugzilla.mozilla.org/show_bug.cgi?id=1287204
- https://bugzilla.mozilla.org/show_bug.cgi?id=1288555
- https://bugzilla.mozilla.org/show_bug.cgi?id=1288588
- https://bugzilla.mozilla.org/show_bug.cgi?id=1288780
- https://bugzilla.mozilla.org/show_bug.cgi?id=1289280
- https://bugzilla.mozilla.org/show_bug.cgi?id=1293347
- https://bugzilla.mozilla.org/show_bug.cgi?id=1294095
- https://bugzilla.mozilla.org/show_bug.cgi?id=1294407
- https://security.gentoo.org/glsa/201701-15
- https://www.mozilla.org/security/advisories/mfsa2016-86/
- https://www.mozilla.org/security/advisories/mfsa2016-88/
→ the Explorer · watch your stack · NVD