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CVE-2026-93314— Freedesktop Poppler FoFiTrueType.cc mapCodeToGID integer overflow

Quick assessment

Affected
Freedesktop Poppler
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Freedesktop Poppler 26.07.0 版本中确认存在一个漏洞。该漏洞影响文件 fofi/FoFiTrueType.cc 中的函数 FoFiTrueType::mapCodeToGID。通过操纵参数 segCnt，可导致整数溢出。该攻击可远程发起，且利用方法已公开披露，可能被滥用。该漏洞的修复补丁编号为 ed2a5538cf0a8d3ff908191eda9b73f91a5f952a。建议应用该补丁以修复此问题。

CVSS 6.3 · Medium
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I. Basic Information for CVE-2026-93314

Vulnerability Information
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Vulnerability Title
Freedesktop Poppler FoFiTrueType.cc mapCodeToGID integer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Freedesktop Poppler 26.07.0 cpe:2.3:a:freedesktop:poppler:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-93314

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III. Intelligence Information for CVE-2026-93314

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Other References for CVE-2026-93314 (4)

Same Patch Batch · Freedesktop · 2026-09-18 · 4 CVEs total

CVE-2026-93313 6.3 MEDIUM Freedesktop Poppler JBIG2Stream.cc readCodeTableSeg integer overflow
CVE-2026-93311 4.3 MEDIUM Freedesktop Poppler SampledFunction Function.cc integer overflow
CVE-2026-93312 4.3 MEDIUM Freedesktop Poppler JBIG2Stream.cc rewind null pointer dereference

IV. Related Vulnerabilities

Same product: Poppler
Same vendor: Freedesktop
Same weakness: CWE-190

V. Comments for CVE-2026-93314

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