LIVE NEWSROOM · --:-- · May 25, 2026
A LIBRARY FOR SECURITY RESEARCHERS

CVE DATABASE  /  CVE-2023-49286

CVE-2023-49286

CVSS 8.6 · HIGH

Summary

Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to an Incorrect Check of Function Return Value bug Squid is vulnerable to a Denial of Service attack against its Helper process management. This bug is fixed by Squid version 6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CVSS 3.1 breakdown

Base score8.6 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack vectorNETWORK
Attack complexityLOW
Privileges requiredNONE
User interactionNONE
ScopeCHANGED
ConfidentialityNONE
IntegrityNONE
AvailabilityHIGH

Weakness type (CWE)

Affected products

Squid-cache squid
Check this CVE live

Use our free CVE Lookup tool for the latest NVD record, or browse the full CISA KEV catalog.

References

Data: NIST NVD. NVD last modified 2024-11-21. Always verify against the vendor advisory before acting.

Scroll to Top