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Fencer Intel
medium 5.0

CVE-2010-0639 json

The htcpHandleTstRequest function in htcp.c in Squid 2.x before 2.6.STABLE24 and 2.7 before 2.7.STABLE8, and htcp.cc in 3.0 before 3.0.STAB…

published 2010-02-15 16 y ago modified 2026-06-16 4 mo ago also EUVD-2010-0670

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
31.1%
EPSS 31.1% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

The htcpHandleTstRequest function in htcp.c in Squid 2.x before 2.6.STABLE24 and 2.7 before 2.7.STABLE8, and htcp.cc in 3.0 before 3.0.STABLE24, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via crafted packets to the HTCP port.

Patch / fix

  • squid Debian 14, Debian 13, Debian 12 2.7.STABLE8-1

debian advisories DEBIAN-CVE-2010-0639

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2010-0639 updated cvss 4.3

squid: HTCP packet temporary DoS (SQUID-2010:2)

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

31.07% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.