CVE-2012-5340

HIGHNVD 7.87.8—

7.8

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.

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 85.5%
KEV: Not listed

Published

January 23, 2020

Last Modified

November 21, 2024

References (4)

cve@mitrehttp://www.exploit-db.com/exploits/23246
cve@mitrehttps://bugs.ghostscript.com/show_bug.cgi?id=693371
cve@mitrehttps://cgit.ghostscript.com/cgi-bin/cgit.cgi/mupdf.git/commit/?id=f919270b6a732ff45c3ba2d0c105e2b39e9c9bc9
af854a3a-2127-422b-91ae-364da2661108http://www.exploit-db.com/exploits/23246

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-190Integer Overflow or Wraparound

Data Freshness Timeline

(refreshed 9× in last 7d / 9× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 08:45 UTCEG score recompute
2026-05-27 08:45 UTCGHSA enrichment
2026-05-26 13:41 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-24 16:43 UTCepss_batch

Frequently asked(5)

What is CVE-2012-5340?

CVE-2012-5340 is a high vulnerability published on January 23, 2020. 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.

When was CVE-2012-5340 disclosed?

CVE-2012-5340 was first published in the National Vulnerability Database on January 23, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2012-5340 actively exploited?

CVE-2012-5340 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 85.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2012-5340?

CVE-2012-5340 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2012-5340?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2012-5340, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2012-5340

📅 Published

🔄 Last Modified

🔗 References (4)