SumatraPDF 2.1.1/MuPDF 1.0 allows remote attackers to cause an Integer Overflow in the…
Priority HIGH 69CWE-190Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-190 and the CVSS impact.
Summary
SumatraPDF 2.1.1/MuPDF 1.0 allows remote attackers to cause an Integer Overflow in the lex_number() function via a corrupt PDF file.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.05731 93rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
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
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:sumatrapdfreader:sumatrapdf:2.1.1:*:*:*:*:*:*:* | 2.1.1 | Vulnerable | sumatrapdfreader |
| cpe:2.3:a:artifex:mupdf:1.0:*:*:*:*:*:*:* | 1.0 | Vulnerable | Artifex |
| cpe:2.3:a:artifex:mupdf:1.1:*:*:*:*:iphone_os:*:* | 1.1 | Vulnerable | Artifex |
- cpe:2.3:a:sumatrapdfreader:sumatrapdf:2.1.1:*:*:*:*:*:*:* Versions 2.1.1 Vulnerable ·sumatrapdfreader
- cpe:2.3:a:artifex:mupdf:1.0:*:*:*:*:*:*:* Versions 1.0 Vulnerable ·Artifex
- cpe:2.3:a:artifex:mupdf:1.1:*:*:*:*:iphone_os:*:* Versions 1.1 Vulnerable ·Artifex
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2012-5340
- 2026-10-03 Alias added: GHSA-g8x3-qg8h-3qqr
References
Sources
- CVE-2012-5340 · CVE Program
- CVE-2012-5340 · NVD
- FIRST EPSS
- GHSA-g8x3-qg8h-3qqr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences