CVE-2026-34085

highpriority · track · 31EPSS 0.001 · 3 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.13% (3rd) EPSS

CVSS 7.8 · high

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

fontconfig before 2.17.1 has an off-by-one error in allocation during sfnt capability handling, leading to a one-byte out-of-bounds write, and potentially a crash or code execution. This is in FcFontCapabilities in fcfreetype.c.

cvss

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.9–7.8

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.15.9mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Lsecondary · ENISA EU

v3.15.9mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Lsecondary · cve@mitre.org USexploitability 2.5 · impact 3.4

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-193US

affected products (3)

Products and version ranges known to be affected.

Red Hat Enterprise Linux Hardened Images RPMsall versionscert_bundDEcpe:/o:redhat:enterprise_linux:hardened_images_rpms
fontconfig project fontconfig0 → 2.17.1enisa_euvdEU
fontconfig project fontconfig= 2.17.0nvdUScpe:2.3:a:fontconfig_project:fontconfig:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1365Red Hat Hardened Images RPMs (fontconfig): Schwachstelle ermöglicht Codeausführung oder DoSDeutsch2026-05-05csaf · cert_bundDE
Ein lokaler Angreifer kann eine Schwachstelle in Red Hat Hardened Images RPMs ausnutzen, um beliebigen Programmcode auszuführen oder einen Denial-of-Service-Zustand zu verursachen.

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2026-03-25modified 2026-06-17

references (10)

External citations — patches, advisories, analysis.

scry

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