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CVE-2002-0163

35
FAUCET Score

CVE-2002-0163 describes a heap-based buffer overflow vulnerability in Squid proxy server versions prior to 2.4 STABLE4, and specific 2.5 and 2.6 distributions. This flaw allows remote attackers to trigger a denial of service and potentially execute arbitrary code by sending specially crafted compressed DNS responses. With a CVSS score of 7.5 (HIGH), it is easily exploitable over the network with low attack complexity, leading to potential partial confidentiality, integrity, and availability impacts. While there is no evidence of active exploitation or Metasploit/Nuclei modules, an ExploitDB entry (EDB-347) exists, indicating public exploit code availability. Community discussion and media coverage for this CVE are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.4_9CPE matchmatch criteria
cpe:2.3:a:squid:squid:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
15.05%
Probability of exploitation in next 30 days
EPSS Percentile
96.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-347 · May 14, 2002
This CVE's current EPSS score of 0.1505 is in the 95th percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia redhat_api
Product: Red Hat Linux 6.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.3
View patch

Vendor Advisories (1)

redhatCVE-2002-0163

security flaw

Mar 26, 2002

References

ftp.caldera.com / pub/security/OpenLinux/CSSA-2002-017.1.txt
ftp.freebsd.org / pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:19.squid.asc
marc.info
rhn.redhat.com / errata/RHSA-2002-051.html
iss.net / security_center/static/8628.php
linux-mandrake.com / en/security/2002/MDKSA-2002-027.php
securityfocus.com / bid/4363
squid-cache.org / Advisories/SQUID-2002_2.txt