The acc_ctx_cont function in the SPNEGO acceptor in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty continuation token at a certain point during a SPNEGO negotiation.
CVE-2014-4344
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 7.8 — v2 rates that HIGH (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:L/Au:N/C:N/I:N/A:C. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 6.6% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v2.0 (legacy)
- 7.8HIGHNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 7.8(low)
- EG Risk
- 42(Track)EG Risk 42/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity78% × 45%Exploitation7% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 7%
- EPSS %ILE
- 93%
- KEV
- Not listed
Published
August 14, 2014
Last Modified
May 6, 2026
References (38)
- cve@mitrehttp://advisories.mageia.org/MGASA-2014-0345.html
- cve@mitrehttp://aix.software.ibm.com/aix/efixes/security/nas_advisory1.asc
- cve@mitrehttp://krbdev.mit.edu/rt/Ticket/Display.html?id=7970
- cve@mitrehttp://lists.fedoraproject.org/pipermail/package-announce/2014-August/136360.html
- cve@mitrehttp://rhn.redhat.com/errata/RHSA-2015-0439.html
- cve@mitrehttp://secunia.com/advisories/59102
- cve@mitrehttp://secunia.com/advisories/60082
- cve@mitrehttp://secunia.com/advisories/60448
- cve@mitrehttp://secunia.com/advisories/61051
- cve@mitrehttp://support.f5.com/kb/en-us/solutions/public/15000/500/sol15561.html
- cve@mitrehttp://www.debian.org/security/2014/dsa-3000
- cve@mitrehttp://www.mandriva.com/security/advisories?name=MDVSA-2014:165
- cve@mitrehttp://www.osvdb.org/109389
- cve@mitrehttp://www.securityfocus.com/bid/69160
- cve@mitrehttp://www.securitytracker.com/id/1030706
Vendor Advisories for CVE-2014-4344(3)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2015:0439Red Hat Product SecurityMedium
Red Hat Security Advisory: krb5 security, bug fix and enhancement update
- RHSA-2014:1389Red Hat Product SecurityMedium
Red Hat Security Advisory: krb5 security and bug fix update
- RHSA-2014:1245Red Hat Product SecurityMedium
Red Hat Security Advisory: krb5 security and bug fix update
Patch Availability(4)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | libkrb5support0 (1.12+dfsg-2ubuntu4.2) @ trusty | 2026-05-28 | ubuntu |
| redhat | krb5-0:1.12.2-14.el7 | 2015-03-05 | redhat |
| redhat | krb5-0:1.10.3-33.el6 | 2014-10-13 | redhat |
| redhat | krb5-0:1.6.1-78.el5 | 2014-09-16 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(6 across 6 ecosystems)
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| krb5 | — | 1.12.1+dfsg-5 | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| krb5 | — | 1.12.1+dfsg-5 | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| krb5 | — | 1.12.1+dfsg-5 | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| krb5 | — | 1.12.1+dfsg-5 | — |
Debian:6.0(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| krb5 | 1.8.3+dfsg-4 ... 1.8.3+dfsg-4squeeze7 (6 versions) | 1.8.3+dfsg-4squeeze8 | — |
Debian:7(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| krb5 | 1.10.1+dfsg-5, 1.10.1+dfsg-5+deb7u1 | 1.10.1+dfsg-5+deb7u2 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(1)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 4× in last 7d / 20× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 135 total refreshes for this CVE.
- 2026-09-15 03:04 UTCEPSS rescore
- 2026-09-12 14:55 UTCEPSS rescore
- 2026-09-11 09:31 UTCEPSS rescore
- 2026-09-10 13:53 UTCOSV refresh
- 2026-09-07 15:56 UTCEPSS rescore
- 2026-09-06 13:42 UTCEPSS rescore
- 2026-09-05 15:23 UTCEPSS rescore
- 2026-09-04 13:55 UTCEPSS rescore
- 2026-09-02 14:07 UTCEPSS rescore
- 2026-09-01 13:48 UTCEPSS rescore
- 2026-08-30 19:12 UTCEPSS rescore
- 2026-08-28 21:34 UTCEPSS rescore
- 2026-08-27 14:20 UTCEPSS rescore
- 2026-08-26 14:41 UTCEPSS rescore
- 2026-08-25 13:44 UTCEPSS rescore
- 2026-08-23 08:52 UTCOSV refresh
- 2026-08-21 23:44 UTCEPSS rescore
- 2026-08-20 22:50 UTCEPSS rescore
- 2026-08-19 16:59 UTCEPSS rescore
- 2026-08-18 13:43 UTCEPSS rescore
- 2026-08-16 14:51 UTCEPSS rescore
- 2026-08-16 02:09 UTCEPSS rescore
- 2026-08-15 01:25 UTCEPSS rescore
- 2026-08-12 13:46 UTCEPSS rescore
- 2026-08-09 13:42 UTCEPSS rescore
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- 2026-08-08 16:31 UTCEPSS rescore
- 2026-08-07 16:21 UTCEPSS rescore
- 2026-08-07 11:27 UTCOSV refresh
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- 2026-08-05 19:12 UTCEPSS rescore
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- 2026-07-30 16:23 UTCEPSS rescore
- 2026-07-30 01:26 UTCEPSS rescore
- 2026-07-28 15:31 UTCEPSS rescore
- 2026-07-26 13:51 UTCEG score recompute▲ 7.80
- 2026-07-24 14:13 UTCEPSS rescore
- 2026-07-23 14:14 UTCEPSS rescore
- 2026-07-23 01:13 UTCEG score recompute
- 2026-07-23 00:16 UTCEG score recompute
- 2026-07-22 21:55 UTCEG score recompute
- 2026-07-22 14:04 UTCEPSS rescore
- 2026-07-22 03:48 UTCOSV refresh
- 2026-07-21 15:21 UTCEPSS rescore
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- 2026-07-18 10:00 UTCEPSS rescore
- 2026-07-16 16:59 UTCEPSS rescore
- 2026-07-15 16:54 UTCEPSS rescore
- 2026-07-15 16:54 UTCEPSS rescore
- 2026-07-13 22:26 UTCEPSS rescore
- 2026-07-13 06:08 UTCEPSS rescore
- 2026-07-12 05:42 UTCEPSS rescore
- 2026-07-12 05:42 UTCEPSS rescore
- 2026-07-11 08:23 UTCEPSS rescore
- 2026-07-09 19:05 UTCEPSS rescore
- 2026-07-08 15:10 UTCEPSS rescore
- 2026-07-07 13:42 UTCEPSS rescore
- 2026-07-06 16:24 UTCEPSS rescore
- 2026-07-06 02:20 UTCEPSS rescore
- 2026-07-05 02:26 UTCEPSS rescore
- 2026-07-04 22:26 UTCOSV refresh
- 2026-07-04 06:27 UTCEPSS rescore
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-06-30 23:19 UTCEPSS rescore
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- 2026-06-29 14:02 UTCEPSS rescore
- 2026-06-28 14:03 UTCEPSS rescore
- 2026-06-28 04:53 UTCEPSS rescore
- 2026-06-28 04:53 UTCEPSS rescore
- 2026-06-27 03:05 UTCEPSS rescore
- 2026-06-25 13:47 UTCEPSS rescore
- 2026-06-25 13:47 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-22 14:22 UTCEPSS rescore
- 2026-06-22 14:22 UTCEPSS rescore
- 2026-06-19 19:23 UTCEPSS rescore
- 2026-06-18 17:49 UTCEPSS rescore
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- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-16 10:13 UTCOSV refresh
- 2026-06-14 23:14 UTCEPSS rescore
- 2026-06-13 22:57 UTCEPSS rescore
- 2026-06-12 23:08 UTCEPSS rescore
- 2026-06-11 13:57 UTCEPSS rescore
- 2026-06-10 22:15 UTCEPSS rescore
- 2026-06-08 14:14 UTCEPSS rescore
- 2026-06-07 15:22 UTCEPSS rescore
Related CVEs(same vendor + same CWE)
Same vendor
10 shownredhat
- CVE-2001-0825EG 10.0HIGH
- CVE-2001-1009EG 10.0EPSS p93HIGH
- CVE-2001-0554EG 10.0EPSS p98HIGH
- CVE-2001-1162EG 10.0EPSS p96HIGH
- CVE-2001-0414EG 10.0EPSS p100HIGH
- CVE-2001-0191EG 10.0EPSS p92HIGH
- CVE-2001-0301EG 10.0EPSS p91HIGH
- CVE-2001-0197EG 10.0EPSS p96HIGH
- CVE-2001-0233EG 10.0EPSS p96HIGH
- CVE-2001-0010EG 10.0EPSS p98HIGH
Frequently asked(4)
What is CVE-2014-4344?
When was CVE-2014-4344 disclosed?
Is CVE-2014-4344 actively exploited?
How do I remediate CVE-2014-4344?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2014-4344
Is Your Infrastructure Affected by CVE-2014-4344?
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