Is CVE-2023-46848 being actively exploited?

CVE-2023-46848 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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

CVE-2023-46848 has a CVSS 3.1 base score of 8.6 (HIGH).

CVE-2023-46848

HIGH · CVSS 8.6EPSS 10.2%EU EUVD

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.

Key facts

CVSS score: 8.6 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Weakness (CWE): CWE-681
EPSS score: 10.2% (96th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2023-51014)
Published: November 3, 2023
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2023-51014 in the EU Vulnerability Database. Last updated in EUVD on February 25, 2026.

View on the EU Vulnerability Database

Affected products

redhat / enterprise linux
redhat / enterprise linux eus
redhat / enterprise linux server aus
redhat / enterprise linux server tus
squid-cache / squid

Certified products that may be affected

8 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Red Hat Enterprise Linux 9 Kernel Cryptographic API - Red Hat, Inc. - FIPS 140 5445 - active
Red Hat Enterprise Linux 9 libgcrypt - Red Hat, Inc. - FIPS 140 5366 - active
Red Hat Enterprise Linux 9 Kernel Cryptographic API - Red Hat, Inc. - FIPS 140 5034 - active
Red Hat Enterprise Linux 9 NSS Cryptographic Module - Red Hat, Inc - FIPS 140 5022 - active
Red Hat Enterprise Linux 9 gnutls - Red Hat, Inc. - FIPS 140 4846 - active

See all 8 in the Security Certifications Explorer.

References

https://access.redhat.com/errata/RHSA-2023:6266(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/security/cve/CVE-2023-46848(Third Party Advisory)
https://bugzilla.redhat.com/show_bug.cgi?id=2245919(Issue Tracking)
https://github.com/squid-cache/squid/security/advisories/GHSA-2g3c-pg7q-g59w(Vendor Advisory)
https://security.netapp.com/advisory/ntap-20231214-0005/

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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