CVE-2016-5255

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

2.40% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 82.9% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Moderate. 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

2016-08-05 01:00Z10 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-416Use After FreeVariant

Data version

5.1

Document digest

0afb632c1daab3921e60a1a706022e1585c7b7c6b202f05aa3b28d1b9cf0e859

• www.securitytracker.com1036508http://www.securitytracker.com/id/1036508vdb-entryx_refsource_SECTRACK
• www.ubuntu.comUSN-3044-1http://www.ubuntu.com/usn/USN-3044-1vendor-advisoryx_refsource_UBUNTU
• bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1212356x_refsource_CONFIRM
• www.securityfocus.com92260http://www.securityfocus.com/bid/92260vdb-entryx_refsource_BID
• security.gentoo.orgGLSA-201701-15https://security.gentoo.org/glsa/201701-15vendor-advisoryx_refsource_GENTOO
• lists.opensuse.orgopenSUSE-SU-2016:1964http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00004.htmlvendor-advisoryx_refsource_SUSE
• www.mozilla.orghttp://www.mozilla.org/security/announce/2016/mfsa2016-71.htmlx_refsource_CONFIRM
• lists.opensuse.orgopenSUSE-SU-2016:2026http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00029.htmlvendor-advisoryx_refsource_SUSE