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CVE-2014-9749

17
FAUCET Score

CVE-2014-9749 is a nonce replay vulnerability affecting Squid versions 3.4.4 through 3.4.11 and 3.5.0.1 through 3.5.1 when Digest authentication is enabled, allowing authenticated users to maintain access with a stale nonce. With a CVSS score of 4.0, it is a low-severity vulnerability that can be exploited remotely with low attack complexity by an authenticated user, leading to a partial integrity impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, indicating a low current threat level.

Impacted Technologies

VendorProductVersion(s)CPE
3.4.4CPE matchmatch criteria
cpe:2.3:a:squid-cache:squid:3.4.4:*:*:*:*:*:*:*
3.4.5CPE matchmatch criteria
cpe:2.3:a:squid-cache:squid:3.4.5:*:*:*:*:*:*:*
3.4.6CPE matchmatch criteria
cpe:2.3:a:squid-cache:squid:3.4.6:*:*:*:*:*:*:*
3.4.7CPE matchmatch criteria
cpe:2.3:a:squid-cache:squid:3.4.7:*:*:*:*:*:*:*
3.4.8CPE matchmatch criteria
cpe:2.3:a:squid-cache:squid:3.4.8:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Exploitability Score
8.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
11.44%
Probability of exploitation in next 30 days
EPSS Percentile
95.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1144 is in the 99th percentile among its peer group of 21,974 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, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Vendor Patches (3)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: squid
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: squid
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: squid

Vendor Advisories (1)

redhatCVE-2014-9749Moderate

squid: Nonce replay vulnerability in Digest authentication

Jan 28, 2015

References

bugs.squid-cache.org / show_bug.cgi
lists.opensuse.org / opensuse-updates/2015-10/msg00052.html
openwall.com / lists/oss-security/2015/10/01/1
openwall.com / lists/oss-security/2015/10/11/4
openwall.com / lists/oss-security/2015/10/12/2