What is CVE-2025-59362?

CVE-2025-59362 is a medium-severity vulnerability in Squid-Cache Squid, classified under Stack-based Buffer Overflow. CVSS score: 4.0/10. Published 2025-09-26.

How severe is CVE-2025-59362?

Medium severity. CVSS v3 base score is 4.0 out of 10.

Is CVE-2025-59362 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Squid-Cache Squid

CVE-2025-59362

Squid through 7.1 mishandles ASN.1 encoding of long SNMP OIDs. This occurs in asn_build_objid in lib/snmplib/asn1.c.

Vulnerability class: Buffer Overflow

EPSS: 0.004 (28.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Squid-cache Squid
N/a — versions n/a

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

Public proof-of-concept exploits

References

cve@mitre.org (Patch, Issue Tracking)
cve@mitre.org (Exploit)

Frequently asked questions

What is CVE-2025-59362?: CVE-2025-59362 is a medium-severity vulnerability in Squid-Cache Squid, classified under Stack-based Buffer Overflow. CVSS score: 4.0/10. Published 2025-09-26.
How severe is CVE-2025-59362?: Medium severity. CVSS v3 base score is 4.0 out of 10.
Is CVE-2025-59362 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.