CVE-2016-5257

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

4.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 90.5% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Critical. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2016-09-22 22:00Z10 YR AGO

Last updated

2024-08-06 00:53Z2 YR AGO

Reserved

2016-06-03

Assigning CNA

mozilla

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass

Data version

5.1

Document digest

fafe8a97dc5926f4e4bc834e3b55519147301a854e7fce0a04e06af9af052fe3

• bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1294407x_refsource_CONFIRM
• www.oracle.comhttp://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.htmlx_refsource_CONFIRM
• bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1293347x_refsource_CONFIRM
• www.mozilla.orghttp://www.mozilla.org/security/announce/2016/mfsa2016-85.htmlx_refsource_CONFIRM
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2016-86/x_refsource_CONFIRM
• bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1289280x_refsource_CONFIRM
• bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1288780x_refsource_CONFIRM
• www.debian.orgDSA-3674http://www.debian.org/security/2016/dsa-3674vendor-advisoryx_refsource_DEBIAN
• bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1287204x_refsource_CONFIRM
• security.gentoo.orgGLSA-201701-15https://security.gentoo.org/glsa/201701-15vendor-advisoryx_refsource_GENTOO
• bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1277213x_refsource_CONFIRM
• rhn.redhat.comRHSA-2016:1985http://rhn.redhat.com/errata/RHSA-2016-1985.htmlvendor-advisoryx_refsource_REDHAT
• bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1288588x_refsource_CONFIRM
• www.debian.orgDSA-3690http://www.debian.org/security/2016/dsa-3690vendor-advisoryx_refsource_DEBIAN
• bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1294095x_refsource_CONFIRM
• rhn.redhat.comRHSA-2016:1912http://rhn.redhat.com/errata/RHSA-2016-1912.htmlvendor-advisoryx_refsource_REDHAT
• bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1288555x_refsource_CONFIRM
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2016-88/x_refsource_CONFIRM
• www.securityfocus.com93049http://www.securityfocus.com/bid/93049vdb-entryx_refsource_BID
• www.securitytracker.com1036852http://www.securitytracker.com/id/1036852vdb-entryx_refsource_SECTRACK