How severe is CVE-2025-59362?

CVE-2025-59362 has a CVSS 3.x base score of 4.0, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2025-59362 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-59362?

CVE-2025-59362 affects Squid-cache Squid. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-59362?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-59362 have an EU (EUVD) identifier?

Yes. CVE-2025-59362 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-31363.

When was CVE-2025-59362 published?

CVE-2025-59362 was published on 2025-09-26 and last updated on 2026-06-17.

CVE-2025-59362

CVE-2025-59362 is a medium-severity vulnerability in Squid-cache Squid with a CVSS 3.x base score of 4.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-121.

Key facts

Severity: Medium (CVSS 3.x base score 4.0)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-31363
Weakness: CWE-121
Affected product: Squid-cache Squid
Published: 2025-09-26
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is 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.
How severe is CVE-2025-59362?: CVE-2025-59362 has a CVSS 3.x base score of 4.0, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2025-59362 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-59362?: CVE-2025-59362 affects Squid-cache Squid. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-59362?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-59362 have an EU (EUVD) identifier?: Yes. CVE-2025-59362 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-31363.
When was CVE-2025-59362 published?: CVE-2025-59362 was published on 2025-09-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

78.39.48.166 (ipv4-addr)
212.58.132.5 (ipv4-addr)
103.200.23.154 (ipv4-addr)
38.248.6.103 (ipv4-addr)
200.89.159.59 (ipv4-addr)
103.54.101.248 (ipv4-addr)
74.113.233.217 (ipv4-addr)
192.3.127.40 (ipv4-addr)