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No exploitation reportedFix available

CVE-2023-46848

No exploitation reported by the sources we read.

  • Published2023-11-03
  • WeaknessCWE-681

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Squid is vulnerable to Denial of Service, where a remote attacker can perform DoS by sending ftp:// URLs in HTTP Request messages or constructing ftp:// URLs from FTP Native input.

Timeline

dates in UTC
  1. 2023-11-0308:15CVE publishedNVD
  2. 2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Versions per branch

NVD
Redhat enterprise linux
BranchAffectedFixed in
9.0= 9.0no fix published
Redhat enterprise linux eus
BranchAffectedFixed in
9.2= 9.2no fix published
Redhat enterprise linux server aus
BranchAffectedFixed in
9.2= 9.2no fix published

2 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • squidUbuntu:22.04:LTSall versions · fixed in 5.7-0ubuntu0.22.04.2
  • squidUbuntu:20.04:LTSall versions · fixed in 4.10-1ubuntu1.8
  • squidTuxCare:CentOS:8.5all versions · fixed in 7:4.15-1.module_el8.5.0+2143+24c223d9.tuxcare.els4
  • squidTuxCare:CentOS-Stream:8all versions · fixed in 7:4.15-10.module_el8+2366+bbf49637.tuxcare.els4
  • squidSUSE:Linux Enterprise Server for SAP Applications 15 SP3all versions · fixed in 4.17-150000.5.38.1
  • squidSUSE:Linux Enterprise Server for SAP Applications 15 SP2all versions · fixed in 4.17-150000.5.38.1
  • squidSUSE:Linux Enterprise Server for SAP Applications 15 SP1all versions · fixed in 4.17-150000.5.38.1
  • squidSUSE:Linux Enterprise Server for SAP Applications 12 SP5all versions · fixed in 4.17-4.30.1

38 more package ranges on OSV.dev

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CNACVSS 3.18.6known since 2026-10-23
  • NVDCVSS 3.17.5read 2026-10-23
  • CNAweakness (CWE)CWE-681known since 2026-10-23
  • NVDweakness (CWE)CWE-681read 2026-10-23
  • FIRST EPSSEPSS score11.4 %read 2026-11-10
  • OSVaffected packages—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2023-11-03
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2023-46848?

Squid is vulnerable to Denial of Service, where a remote attacker can perform DoS by sending ftp:// URLs in HTTP Request messages or constructing ftp:// URLs from FTP Native input.

Is CVE-2023-46848 actively exploited?

Active exploitation of CVE-2023-46848 has not been confirmed. Its EPSS score was 11.4% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-46848?

CVE-2023-46848 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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