CVE-2014-1236

Stack-based buffer overflow in the chkNum function in lib/cgraph/scan.l in Graphviz 2.34.0 allows...

10.0 HighFix available

Stack-based buffer overflow in the chkNum function in lib/cgraph/scan.l in Graphviz 2.34.0 allows remote attackers to have unspecified impact via vectors related to a "badly formed number" and a "long digit list."

Exploit likelihood

6.08%Up 3.9 points since Feb 4, 2022

What each source reports

NVD Score used 10.0

Record: CVE-2014-1236
CVSS 2.0: 10.0 HighAV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness: CWE-119
Updated: 2026-11-02

CVE List No score

Record: CVE-2014-1236
Updated: 2026-11-02

EUVDEUVD-2014-1314 No score

Record: EUVD-2014-1314
Updated: 2026-11-03

GitHub AdvisoriesGHSA-694q-c7vf-rw87 No score

Stack-based buffer overflow in the chkNum function in lib/cgraph/scan.l in Graphviz 2.34.0 allows...

Record: GHSA-694q-c7vf-rw87
Weakness: CWE-119
Updated: 2026-11-02

OSV No score

Record: CVE-2014-1236
Updated: 2026-11-02

OSVDEBIAN-CVE-2014-1236 No score

Record: DEBIAN-CVE-2014-1236
Updated: 2026-11-02

OSVMGASA-2014-0027 No score

Updated graphviz packages fix security vulnerabilities

Updated graphviz packages fix security vulnerabilities:

Multiple buffer overflow vulnerabilities in graphviz due to an error within the "yyerror()" function (lib/cgraph/scan.l) which can be exploited to cause a stack-based buffer overflow via a specially crafted file (CVE-2014-0978) and the acceptance of an arbitrarily long digit list by a regular expression matched against user input (CVE-2014-1236).

Record: MGASA-2014-0027
Updated: 2026-11-02

Affected products

graphviz

Affected packages

Affected packages
Package	Affected	Fixed
`graphviz` Debian:12	before 2.26.3-16.1	2.26.3-16.1
`graphviz` Debian:13	before 2.26.3-16.1	2.26.3-16.1
`graphviz` Debian:14	before 2.26.3-16.1	2.26.3-16.1
`graphviz` Debian:6.0 From an advisory covering 2 CVEs	before 2.26.3-5+squeeze2, plus listed versions 2.26.3-52.26.3-5+hurd.12.26.3-5+squeeze1	2.26.3-5+squeeze2
`graphviz` Debian:7 From an advisory covering 2 CVEs	before 2.26.3-14+deb7u1, plus listed versions 2.26.3-14	2.26.3-14+deb7u1
`graphviz` Mageia:3 From an advisory covering 2 CVEs	before 2.28.0-11.1.mga3	2.28.0-11.1.mga3

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2014-1236 is a high vulnerability (CVSS 10.0) in Graphviz, published January 10, 2014. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 6.08%, the 93rd percentile. Fixed in graphviz 2.26.3-16.1.

References

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