CVE-2002-0163

CVE-2002-0163 is a high-severity vulnerability in Squid with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 15% places it in the 96th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Heap-based buffer overflow in Squid before 2.4 STABLE4, and Squid 2.5 and 2.6 until March 12, 2002 distributions, allows remote attackers to cause a denial of service, and possibly execute arbitrary code, via compressed DNS responses.

Frequently asked questions

What is CVE-2002-0163?
Heap-based buffer overflow in Squid before 2.4 STABLE4, and Squid 2.5 and 2.6 until March 12, 2002 distributions, allows remote attackers to cause a denial of service, and possibly execute arbitrary code, via compressed DNS responses.
How severe is CVE-2002-0163?
CVE-2002-0163 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2002-0163 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 15% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-0163?
CVE-2002-0163 affects Squid. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2002-0163?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2002-0163 published?
CVE-2002-0163 was published on 2002-03-26 and last updated on 2026-06-16.

References

Affected products (1)

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