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Fencer Intel
critical 10.0

CVE-2014-1236 json

Stack-based buffer overflow in the chkNum function in lib/cgraph/scan.l in Graphviz 2.34.0 allows remote attackers to have unspecified impa…

published 12y ago modified 4mo ago also EUVD-2014-1314

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.1%
EPSS 6.1% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

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."

Patch / fix

  • graphviz Debian 14, Debian 13, Debian 12 2.26.3-16.1

debian advisories DEBIAN-CVE-2014-1236

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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-2014-1236 updated cvss 4.3

graphviz: stack-based buffer overflow in chkNum()

  • Red Hat Enterprise Linux 6 graphviz, graphviz-gd, graphviz-lua, graphviz-php, graphviz-tcl, graphviz-java, +5 more
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 7 graphviz, graphviz-gd, graphviz-lua, graphviz-php, graphviz-tcl, graphviz-java, +6 more
    not affected: vulnerable code not present

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

6.08% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/ellson/graphviz/commit/1d1bdec6318746f6f19f245db589eddc887ae8ff referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.