Stack-based buffer overflow in the chkNum function in lib/cgraph/scan.l in Graphviz…
Priority MEDIUM 52CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
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."
Why it matters now
EPSS 0.06082 93rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Will not fix Red Hat: no fix planned
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
Not affected: 1 product
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2014-1236
- 2026-10-03 Alias added: GHSA-694q-c7vf-rw87
References
Advisory 3
Other 5
- [oss-security] 20140108 Re: Re: CVE Request: graphviz: stack-based buffer overflow in yyerror()
- 101851
- [oss-security] 20140108 Re: CVE Request: graphviz: stack-based buffer overflow in yyerror()
- [oss-security] 20140108 Re: Re: CVE Request: graphviz: stack-based buffer overflow in yyerror()
- https://bugzilla.redhat.com/show_bug.cgi?id=1050872
More Graphviz vulnerabilities
- TI-2023-24707 Graphviz 2.36.0 through 9.x before 10.0.1 has an out-of-bounds read via a crafted… CVSS 3.1HIGH 7.8
- TI-2014-00896 Stack-based buffer overflow in the yyerror function in lib/cgraph/scan.l in Graphviz… CVSS 2.0HIGH 9.3
- TI-2019-08239 The agroot() function in cgraph\obj.c in libcgraph.a in Graphviz 2.39.20160612.1140 has a… CVSS 3.0HIGH 8.8
- TI-2008-04345 Stack-based buffer overflow in the push_subg function in parser.y (lib/graph/parser.c) in… CVSS 2.0HIGH 8.5
- TI-2014-07431 Format string vulnerability in the yyerror function in lib/cgraph/scan.l in Graphviz… CVSS 2.0HIGH 7.5
- TI-2020-13300 Buffer Overflow in Graphviz Graph Visualization Tools from commit ID f8b9e035 and earlier… CVSS 3.1HIGH 7.8
Sources
- CVE-2014-1236 · CVE Program
- CVE-2014-1236 · NVD
- FIRST EPSS
- GHSA-694q-c7vf-rw87 · GitHub Advisory Database · CC BY 4.0
- CVE-2014-1236 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences