CVE-2016-5257: mozilla firefox
CVSS: 9.8v3.0CriticalModified
AliasesMGASA-2016-0336RHSA-2016:1985UBUNTU-CVE-2016-5257DEBIAN-CVE-2016-5257DLA-658-1DSA-3690-1
Published 22-09-2016Last modified 06-08-2024
Vulnerability summary
CVE-2016-5257 is a critical (CVSS 9.8) vulnerability in mozilla firefox. EPSS estimates a 4.24% chance of exploitation in the next 30 days, higher than 90.9% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.0 (NVD)EPSS score
4.24%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 12 · Related 7Timeline
- 22-09-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
5 scores · 4 sources · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 4 agree
- OSV · Red hatEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
4.24%
Chance of exploitation in the next 30 days
Percentile
91%
Versus all other CVEs
30-day change
0.00 pp
From 4.24% on 19-09-2026
19-09-202619-10-2026
EPSS score4.24%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- firefox-esr< 45.4.0esr-1
- icedove< 1:45.4.0-1~deb8u1 | < 1:45.4.0-1~deb7u1
Mageia2 products
- thunderbird< 45.4.0-1.mga5
- thunderbird-l10n< 45.4.0-1.mga5
Redhat2 products
- thunderbird< 0:45.4.0-1.el5_11 | < 0:45.4.0-1.el6_8 | < 0:45.4.0-1.el7_2
- thunderbird-debuginfo< 0:45.4.0-1.el5_11 | < 0:45.4.0-1.el6_8 | < 0:45.4.0-1.el7_2
Ubuntu2 products
- firefox< 49.0+build4-0ubuntu0.14.04.1 | < 49.0+build4-0ubuntu0.16.04.1
- thunderbird< 1:45.4.0+build1-0ubuntu0.14.04.1 | < 1:45.4.0+build1-0ubuntu0.16.04.1
Mozilla1 product
- firefox≤ 48.0.2 | 45.1.0 | 45.1.1 | 45.2.0 | 45.3.0
5 vendors · 9 products
References
38 links- www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.htmlX Refsource CONFIRM
Show all 38 references
- www.mozilla.org/security/advisories/mfsa2016-88/X Refsource CONFIRM
