CVE-2007-1560

The clientProcessRequest() function in src/client_side.c in Squid 2.6 before 2.6.STABLE12 allows remote attackers to cause a denial of service (daemon crash) via crafted TRACE requests that trigger an assertion error.

Published: 2007-03-21 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2007-1560 is rated Moderate Risk (57.8/100): CVSS Medium severity, with high exploitation likelihood (EPSS 70.55%, 99th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +3.25% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2007-1560

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-14 67.30% 70.55% +3.25%
2 2025-11-07 63.98% 67.30% +3.32%
3 2025-07-26 — 63.98% —

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-1560

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2007-1560

OS Trackers for CVE-2007-1560

vendor priority summary link
debian low CVE-2007-1560 low priority: Debian including 1 source packages (squid), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2007-1560
gentoo low CVE-2007-1560: 1 GLSA(s) (200703-27), 1 atom(s) (net-proxy/squid); latest impact low. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2007-1560
redhat medium — https://access.redhat.com/security/cve/CVE-2007-1560
ubuntu medium CVE-2007-1560 medium priority: Ubuntu including 1 source packages (squid), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 2, needs-triage 1, not-affected 1. https://ubuntu.com/security/CVE-2007-1560

Affected software / configurations for CVE-2007-1560

Vendor Product Version Raw CPE
squid squid 2.6.stable1 cpe:2.3:a:squid:squid:2.6.stable1:*:*:*:*:*:*:*
squid squid 2.6.stable2 cpe:2.3:a:squid:squid:2.6.stable2:*:*:*:*:*:*:*
squid squid 2.6.stable3 cpe:2.3:a:squid:squid:2.6.stable3:*:*:*:*:*:*:*
squid squid 2.6.stable4 cpe:2.3:a:squid:squid:2.6.stable4:*:*:*:*:*:*:*
squid squid 2.6.stable5 cpe:2.3:a:squid:squid:2.6.stable5:*:*:*:*:*:*:*
squid squid 2.6.stable6 cpe:2.3:a:squid:squid:2.6.stable6:*:*:*:*:*:*:*
squid squid 2.6.stable7 cpe:2.3:a:squid:squid:2.6.stable7:*:*:*:*:*:*:*
squid squid 2.6.stable8 cpe:2.3:a:squid:squid:2.6.stable8:*:*:*:*:*:*:*
squid squid 2.6.stable9 cpe:2.3:a:squid:squid:2.6.stable9:*:*:*:*:*:*:*
squid squid 2.6.stable10 cpe:2.3:a:squid:squid:2.6.stable10:*:*:*:*:*:*:*
squid squid 2.6.stable11 cpe:2.3:a:squid:squid:2.6.stable11:*:*:*:*:*:*:*

References for CVE-2007-1560

URL Tags
http://secunia.com/advisories/24611 Patch Vendor Advisory
http://secunia.com/advisories/24614 Vendor Advisory
http://secunia.com/advisories/24625 Vendor Advisory
http://secunia.com/advisories/24662 Vendor Advisory
http://secunia.com/advisories/24911 Vendor Advisory
http://security.gentoo.org/glsa/glsa-200703-27.xml
http://www.mandriva.com/security/advisories?name=MDKSA-2007:068
http://www.novell.com/linux/security/advisories/2007_5_sr.html
http://www.redhat.com/support/errata/RHSA-2007-0131.html
http://www.securityfocus.com/bid/23085
http://www.securitytracker.com/id?1017805
http://www.squid-cache.org/Advisories/SQUID-2007_1.txt Patch Vendor Advisory
http://www.squid-cache.org/Versions/v2/2.6/changesets/11349.patch
http://www.ubuntu.com/usn/usn-441-1
http://www.vupen.com/english/advisories/2007/1035 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/33124
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10291
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