CVE-2016-4053

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

14.36% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 96.4% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

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

2016-04-25 14:00Z10 YR AGO

Last updated

2024-08-06 00:17Z2 YR AGO

Reserved

2016-04-20

Assigning CNA

mitre

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
• CWE-20Improper Input ValidationClass

Data version

5.1

Document digest

23b2285651f4e843362b2453b0f94e3fa3a213fa6e25736c47da7ce6f3336229

• www.squid-cache.orghttp://www.squid-cache.org/Advisories/SQUID-2016_6.txtx_refsource_CONFIRM
• security.gentoo.orgGLSA-201607-01https://security.gentoo.org/glsa/201607-01vendor-advisoryx_refsource_GENTOO
• www.oracle.comhttp://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlx_refsource_CONFIRM
• www.oracle.comhttp://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.htmlx_refsource_CONFIRM
• lists.opensuse.orgSUSE-SU-2016:1996http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.htmlvendor-advisoryx_refsource_SUSE
• www.openwall.com[oss-security] 20160421 CVE Request: Squid HTTP Caching Proxy multiple issueshttp://www.openwall.com/lists/oss-security/2016/04/20/6mailing-listx_refsource_MLIST
• www.ubuntu.comUSN-2995-1http://www.ubuntu.com/usn/USN-2995-1vendor-advisoryx_refsource_UBUNTU
• access.redhat.comRHSA-2016:1140https://access.redhat.com/errata/RHSA-2016:1140vendor-advisoryx_refsource_REDHAT
• lists.opensuse.orgopenSUSE-SU-2016:2081http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.htmlvendor-advisoryx_refsource_SUSE
• access.redhat.comRHSA-2016:1138https://access.redhat.com/errata/RHSA-2016:1138vendor-advisoryx_refsource_REDHAT
• www.securityfocus.com91787http://www.securityfocus.com/bid/91787vdb-entryx_refsource_BID
• access.redhat.comRHSA-2016:1139https://access.redhat.com/errata/RHSA-2016:1139vendor-advisoryx_refsource_REDHAT
• lists.opensuse.orgSUSE-SU-2016:2089http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.htmlvendor-advisoryx_refsource_SUSE
• www.openwall.com[oss-security] 20160420 Re: CVE Request: Squid HTTP Caching Proxy multiple issueshttp://www.openwall.com/lists/oss-security/2016/04/20/9mailing-listx_refsource_MLIST
• www.securitytracker.com1035647http://www.securitytracker.com/id/1035647vdb-entryx_refsource_SECTRACK
• www.debian.orgDSA-3625http://www.debian.org/security/2016/dsa-3625vendor-advisoryx_refsource_DEBIAN
• www.securityfocus.com86788http://www.securityfocus.com/bid/86788vdb-entryx_refsource_BID