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CVE-2005-2917

Squid 2.5.STABLE10 and earlier, while performing NTLM authentication, does not properly handle...

5.0 MediumFix available

CVE-2005-2917 is a medium vulnerability (CVSS 5.0) in Squid, published September 30, 2005. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.40%, the 88th percentile. Fixed in squid 2.5.10-7.

Squid 2.5.STABLE10 and earlier, while performing NTLM authentication, does not properly handle certain request sequences, which allows attackers to cause a denial of service (daemon restart).

Exploit likelihood

3.40%Up 0.7 points since Feb 4, 2022

What each source reports

NVD Score used 5.0

Squid 2.5.STABLE10 and earlier, while performing NTLM authentication, does not properly handle certain request sequences, which allows attackers to cause a denial of service (daemon restart).

Record: CVE-2005-2917
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Updated: 2026-11-02

CVE List No score

Squid 2.5.STABLE10 and earlier, while performing NTLM authentication, does not properly handle certain request sequences, which allows attackers to cause a denial of service (daemon restart).

Record: CVE-2005-2917
Updated: 2026-11-02

EUVDEUVD-2005-2917 No score

Squid 2.5.STABLE10 and earlier, while performing NTLM authentication, does not properly handle certain request sequences, which allows attackers to cause a denial of service (daemon restart).

Record: EUVD-2005-2917
Updated: 2026-11-03

GitHub AdvisoriesGHSA-5hg5-x4p6-wgf5 No score

Squid 2.5.STABLE10 and earlier, while performing NTLM authentication, does not properly handle...

Squid 2.5.STABLE10 and earlier, while performing NTLM authentication, does not properly handle certain request sequences, which allows attackers to cause a denial of service (daemon restart).

Record: GHSA-5hg5-x4p6-wgf5
Updated: 2026-11-02

OSV No score

Squid 2.5.STABLE10 and earlier, while performing NTLM authentication, does not properly handle certain request sequences, which allows attackers to cause a denial of service (daemon restart).

Record: CVE-2005-2917
Updated: 2026-11-02

OSVDEBIAN-CVE-2005-2917 No score

Squid 2.5.STABLE10 and earlier, while performing NTLM authentication, does not properly handle certain request sequences, which allows attackers to cause a denial of service (daemon restart).

Record: DEBIAN-CVE-2005-2917
Updated: 2026-11-02

Affected products

squid

Affected packages

Affected packages
Package	Affected	Fixed
`squid` Debian:12	before 2.5.10-7	2.5.10-7
`squid` Debian:13	before 2.5.10-7	2.5.10-7
`squid` Debian:14	before 2.5.10-7	2.5.10-7
`squid` Debian:3.1	before 2.5.9-10sarge2, plus listed versions 2.5.9-102.5.9-10sarge1	2.5.9-10sarge2
`squid` Red Hat:enterprise_linux:3::as	before 7:2.5.STABLE3-6.3E.16	7:2.5.STABLE3-6.3E.16
`squid-debuginfo` Red Hat:enterprise_linux:3::as	before 7:2.5.STABLE3-6.3E.16	7:2.5.STABLE3-6.3E.16
`squid` Red Hat:enterprise_linux:3::desktop	before 7:2.5.STABLE3-6.3E.16	7:2.5.STABLE3-6.3E.16
`squid-debuginfo` Red Hat:enterprise_linux:3::desktop	before 7:2.5.STABLE3-6.3E.16	7:2.5.STABLE3-6.3E.16
`squid` Red Hat:enterprise_linux:3::es	before 7:2.5.STABLE3-6.3E.16	7:2.5.STABLE3-6.3E.16
`squid-debuginfo` Red Hat:enterprise_linux:3::es	before 7:2.5.STABLE3-6.3E.16	7:2.5.STABLE3-6.3E.16

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Affected packages
Package	Affected	Fixed
`squid` Red Hat:enterprise_linux:3::ws	before 7:2.5.STABLE3-6.3E.16	7:2.5.STABLE3-6.3E.16
`squid-debuginfo` Red Hat:enterprise_linux:3::ws	before 7:2.5.STABLE3-6.3E.16	7:2.5.STABLE3-6.3E.16
`squid` Red Hat:enterprise_linux:4::as	before 7:2.5.STABLE6-3.4E.12	7:2.5.STABLE6-3.4E.12
`squid-debuginfo` Red Hat:enterprise_linux:4::as	before 7:2.5.STABLE6-3.4E.12	7:2.5.STABLE6-3.4E.12
`squid` Red Hat:enterprise_linux:4::desktop	before 7:2.5.STABLE6-3.4E.12	7:2.5.STABLE6-3.4E.12
`squid-debuginfo` Red Hat:enterprise_linux:4::desktop	before 7:2.5.STABLE6-3.4E.12	7:2.5.STABLE6-3.4E.12
`squid` Red Hat:enterprise_linux:4::es	before 7:2.5.STABLE6-3.4E.12	7:2.5.STABLE6-3.4E.12
`squid-debuginfo` Red Hat:enterprise_linux:4::es	before 7:2.5.STABLE6-3.4E.12	7:2.5.STABLE6-3.4E.12
`squid` Red Hat:enterprise_linux:4::ws	before 7:2.5.STABLE6-3.4E.12	7:2.5.STABLE6-3.4E.12
`squid-debuginfo` Red Hat:enterprise_linux:4::ws	before 7:2.5.STABLE6-3.4E.12	7:2.5.STABLE6-3.4E.12

History

History
When	Changed	Sources
2026-11-03	aliases	EUVD
2026-11-02	created	CVE List, GitHub Advisories, NVD, OSV

References

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