Reference page — cumulative record through Monday, October 5, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2023-46847

CVE-2023-46847HIGH

Squid: denial of service in http digest authentication

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  N  N  H    7.5   .8835   99.8     —

AFFECTED
  Product                                                         Versions     Fixed
  squid                                                           3.2.0.1 –    —
  Red Hat Enterprise Linux 6 Extended Lifecycle Support           unspecified  7:3.4.14-15.el6_10.1
  Red Hat Enterprise Linux 6 Extended Lifecycle Support           unspecified  7:3.1.23-24.el6_10.1
  Red Hat Enterprise Linux 7                                      unspecified  7:3.5.20-17.el7_9.9
  Red Hat Enterprise Linux 7.6 Advanced Update Support            unspecified  7:3.5.20-12.el7_6.2
  Red Hat Enterprise Linux 7.7 Advanced Update Support            unspecified  7:3.5.20-13.el7_7.1
  Red Hat Enterprise Linux 8                                      unspecified  8080020231030214932.63b34585
  Red Hat Enterprise Linux 8                                      unspecified  8090020231030224841.a75119d5
  Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions  unspecified  8010020231101141358.c27ad7f8
  Red Hat Enterprise Linux 8.2 Advanced Update Support            unspecified  8020020231101135052.4cda2c84
  + 9 more

TIMELINE
  Oct 27  Reserved by redhat
  Nov 3   Published (CNA: redhat)
  Aug 7   RESCORED — CVE-2023-46847 (squid). CVSS 8.6 → 7.5 (NVD).

CWE-120 · CNA: redhat · CVSS v3.1 · 19 references · NVD status: Modified

Description

Squid is vulnerable to a Denial of Service, where a remote attacker can perform buffer overflow attack by writing up to 2 MB of arbitrary data to heap memory when Squid is configured to accept HTTP Digest Authentication.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
October 27, 2023	Reserved	Reserved by redhat
November 3, 2023	Published	Published (CNA: redhat)
August 7, 2026	RESCORED	RESCORED — CVE-2023-46847 (squid). CVSS 8.6 → 7.5 (NVD).

Affected

Affected products and packages — 19 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
—	squid	—	3.2.0.1	—
Red Hat	Red Hat Enterprise Linux 6 Extended Lifecycle Support	—	—	7:3.4.14-15.el6_10.1
Red Hat	Red Hat Enterprise Linux 6 Extended Lifecycle Support	—	—	7:3.1.23-24.el6_10.1
Red Hat	Red Hat Enterprise Linux 7	—	—	7:3.5.20-17.el7_9.9
Red Hat	Red Hat Enterprise Linux 7.6 Advanced Update Support	—	—	7:3.5.20-12.el7_6.2
Red Hat	Red Hat Enterprise Linux 7.7 Advanced Update Support	—	—	7:3.5.20-13.el7_7.1
Red Hat	Red Hat Enterprise Linux 8	—	—	8080020231030214932.63b34585
Red Hat	Red Hat Enterprise Linux 8	—	—	8090020231030224841.a75119d5
Red Hat	Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions	—	—	8010020231101141358.c27ad7f8
Red Hat	Red Hat Enterprise Linux 8.2 Advanced Update Support	—	—	8020020231101135052.4cda2c84
Red Hat	Red Hat Enterprise Linux 8.2 Telecommunications Update Service	—	—	8020020231101135052.4cda2c84
Red Hat	Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions	—	—	8020020231101135052.4cda2c84
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	—	—	8040020231101101624.522a0ee4
Red Hat	Red Hat Enterprise Linux 8.4 Telecommunications Update Service	—	—	8040020231101101624.522a0ee4
Red Hat	Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions	—	—	8040020231101101624.522a0ee4
Red Hat	Red Hat Enterprise Linux 8.6 Extended Update Support	—	—	8060020231031165747.ad008a3a
Red Hat	Red Hat Enterprise Linux 9	—	—	7:5.5-5.el9_2.1
Red Hat	Red Hat Enterprise Linux 9	—	—	7:5.5-6.el9_3.1
Red Hat	Red Hat Enterprise Linux 9.0 Extended Update Support	—	—	7:5.2-1.el9_0.3

Weaknesses

CWE-120

References (19)

https://access.redhat.com/errata/RHSA-2023:6266 [Third Party Advisory]
https://access.redhat.com/errata/RHSA-2023:6267 [Third Party Advisory]
https://access.redhat.com/errata/RHSA-2023:6268 [Third Party Advisory]
https://access.redhat.com/errata/RHSA-2023:6748 [Third Party Advisory]
https://access.redhat.com/errata/RHSA-2023:6801 [Third Party Advisory]
https://access.redhat.com/errata/RHSA-2023:6803 [Third Party Advisory]
https://access.redhat.com/errata/RHSA-2023:6804 [Third Party Advisory]
https://access.redhat.com/errata/RHSA-2023:6805 [Third Party Advisory]
https://access.redhat.com/errata/RHSA-2023:6810 [Third Party Advisory]
https://access.redhat.com/errata/RHSA-2023:6882 [Third Party Advisory]
https://access.redhat.com/errata/RHSA-2023:6884 [Third Party Advisory]
https://access.redhat.com/errata/RHSA-2023:7213 [Third Party Advisory]
https://access.redhat.com/errata/RHSA-2023:7576 [Third Party Advisory]
https://access.redhat.com/errata/RHSA-2023:7578 [Third Party Advisory]
https://access.redhat.com/security/cve/CVE-2023-46847 [Third Party Advisory]
https://bugzilla.redhat.com/show_bug.cgi?id=2245916 [Issue Tracking, Third Party Advisory]
https://github.com/squid-cache/squid/security/advisories/GHSA-phqj-m8gv-cq4g [Vendor Advisory]
https://lists.debian.org/debian-lts-announce/2024/01/msg00003.html
https://security.netapp.com/advisory/ntap-20231130-0002/

Authoritative record: CVE-2023-46847 at cve.org

Vendors: red hat

Weaknesses: CWE-120

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-46847 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 5, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.