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Fencer Intel
medium 4.0

CVE-2014-9749 json

Squid 3.4.4 through 3.4.11 and 3.5.0.1 through 3.5.1, when Digest authentication is used, allow remote authenticated users to retain access…

published 2015-11-06 11 y ago modified 2026-06-17 4 mo ago also EUVD-2014-9555

cvss
4.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
11.4%
EPSS 11.4% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

Squid 3.4.4 through 3.4.11 and 3.5.0.1 through 3.5.1, when Digest authentication is used, allow remote authenticated users to retain access by leveraging a stale nonce, aka "Nonce replay vulnerability."

Patch / fix

  • squid SLES for SAP 12 SP2, SLES for Raspberry Pi 12 SP2, SLES 12 SP2 3.5.21-25.1
  • squid SLES for SAP 12 SP1, SLES 12 SP1 3.3.14-22.6.1
  • squid3 SLES for SAP 11 SP4, SLES 11 SP4 3.1.23-8.16.36.1
  • squid SLES for SAP 11 SP4, SLES for SAP 11 SP3, SLES 11 SP4 +2 more 2.7.STABLE5-2.12.24.2

suse advisories SUSE-SU-2017:0128-1SUSE-SU-2017:0116-1SUSE-SU-2017:0110-1SUSE-SU-2015:1983-1

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-2014-9749 updated cvss 4.0

squid: Nonce replay vulnerability in Digest authentication

  • Red Hat Enterprise Linux 5 squid Red Hat Enterprise Linux 6 squid Red Hat Enterprise Linux 7 squid, squid-sysvinit, squid-migration-script
    affected: no fix planned “Will not fix”

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

11.44% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:P/A:N

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls

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.