A vulnerability was determined in Freedesktop Poppler 26.07.0. This affects the function FoFiTrueType::mapCodeToGID of the file fofi/FoFiTrueType.cc. Executing a manipulation of the argument segCnt can lead to integer overflow. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. This patch is called ed2a5538cf0a8d3ff908191eda9b73f91a5f952a. It is advisable to implement a patch to correct this issue.
CVE-2026-93314
Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-09-18. a secondary CVSS source baseline 6.3; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.3
- EG Score
- 6.3(high)
- EG Risk
- 33(Track)EG Risk 33/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity63% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 16%
- KEV
- Not listed
Published
September 18, 2026
Last Modified
September 18, 2026
Advisory Details (4)
Auto-updated Sep 18, 2026FoFiTrueType::mapCodeToGID: Improve b*12 overflow check (ed2a5538) · Commits · poppler / poppler · GitLab
https://gitlab.freedesktop.org/poppler/poppler/-/commit/ed2a5538cf0a8d3ff908191eda9b73f91a5f952a?merge_request_iid=2315cve_summit/Signed-integer-overflow-in-FoFiTrueType-mapCodeToGID-FoFiTrueType.cc-608.md at main · r1ck9-2q/cve_summit · GitHub
https://github.com/r1ck9-2q/cve_summit/blob/main/Signed-integer-overflow-in-FoFiTrueType-mapCodeToGID-FoFiTrueType.cc-608.mdFoFiTrueType::mapCodeToGID: Improve b*12 overflow check (!2315) · Merge requests · poppler / poppler · GitLab
https://gitlab.freedesktop.org/poppler/poppler/-/merge_requests/2315Signed integer overflow in TrueType cmap parsing due to insufficient segCnt validation (#1761) · Issues · poppler / poppler · GitLab
https://gitlab.freedesktop.org/poppler/poppler/-/work_items/1761Vendor Advisories for CVE-2026-93314(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 7× in last 7d / 7× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-18 19:28 UTCEPSS rescore
- 2026-09-18 13:39 UTCEG score recompute
- 2026-09-18 13:39 UTCGHSA enrichment
- 2026-09-18 02:32 UTCEG score recompute
- 2026-09-18 02:31 UTCNVD updateCVSS v4 → 2.1
- 2026-09-18 01:34 UTCEG score recompute
- 2026-09-18 01:34 UTCMITRE cvelistV5first tracked
Frequently asked(5)
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Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-93314
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