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Fencer Vulns
high 8.1

CVE-2025-27363 kev in the critical feed json

An out of bounds write exists in FreeType versions 2.13.0 and below when attempting to parse font...

published 2025-03-11 19 mo ago modified 2026-07-18 3 mo ago also EUVD-2025-6367 , GHSA-g8qj-jv5h-78cp , JLSEC-2026-460

cvss
8.1
version 3.1, CNA
cisa kev
Exploited
added 2025-05-06
epss
27.8%
EPSS 27.8% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

An out of bounds write exists in FreeType versions 2.13.0 and below (newer versions of FreeType are not vulnerable) when attempting to parse font subglyph structures related to TrueType GX and variable font files. The vulnerable code assigns a signed short value to an unsigned long and then adds a static value causing it to wrap around and allocate too small of a heap buffer. The code then writes up to 6 signed long integers out of bounds relative to this buffer. This may result in arbitrary code execution. This vulnerability may have been exploited in the wild.

Patch / fix

cisa required action Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

  • julia FreeType2_jll 2.13.1+0
  • freetype Debian 12 2.12.1+dfsg-5+deb12u4
  • freetype Debian 14, Debian 13 2.13.1+dfsg-1

debian advisories DEBIAN-CVE-2025-27363

  • freetype Ubuntu 20.04 LTS 2.10.1-2ubuntu0.4
  • freetype Ubuntu 22.04 LTS 2.11.1+dfsg-1ubuntu0.3
  • freetype Ubuntu Pro 16.04 LTS 2.6.1-0.1ubuntu2.5+esm2
  • freetype Ubuntu Pro 18.04 LTS 2.8.1-2ubuntu2.2+esm1

ubuntu advisories UBUNTU-CVE-2025-27363

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • mingw-freetype RHEL 8 2.8-3.el8_10.1
  • spice-client-win RHEL 8 8.10-1.el8_10
  • mingw32-freetype RHEL 8 2.8-3.el8_10.1
  • mingw64-freetype RHEL 8 2.8-3.el8_10.1
  • spice-client-win-x64 RHEL 8 8.10-1.el8_10
  • spice-client-win-x86 RHEL 8 8.10-1.el8_10
  • freetype RHEL 8 2.9.1-10.el8_10
  • freetype RHEL 9 2.10.4-10.el9_5

red hat advisories RHSA-2025:9380RHSA-2025:8292RHSA-2025:8253RHSA-2025:8219RHSA-2025:8195RHSA-2025:3421

  • freetype2 SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES for SAP 15 SP3 +18 more 2.10.4-150000.4.18.1
  • ft2demos SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES for SAP 15 SP3 +11 more 2.10.4-150000.4.18.1
  • freetype2 SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 2.6.3-7.21.1
  • ft2demos SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 2.6.3-7.21.1

suse advisories SUSE-SU-2025:0998-1SUSE-SU-2025:0960-1

  • mingw32-freetype AlmaLinux 8 2.8-3.el8_10.1
  • mingw64-freetype AlmaLinux 8 2.8-3.el8_10.1
  • freetype AlmaLinux 8 2.9.1-10.el8_10

almalinux advisories ALSA-2025:8292ALSA-2025:3421

  • freetype Rocky Linux 9 2.10.4-10.el9_5
  • mingw-freetype Rocky Linux 8 2.8-3.el8_10.1
  • spice-client-win Rocky Linux 8 8.10-1.el8_10
  • freetype Rocky Linux 8 2.9.1-10.el8_10

rocky linux advisories RLSA-2025:3407RLSA-2025:8292RLSA-2025:3421

  • freetype Alpine 3.24, Alpine 3.23, Alpine 3.22 2.13.1-r0

alpine advisories ALPINE-CVE-2025-27363

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • freetype CBL-Mariner 2.0 2.13.1-1

azure linux advisories AZL-58354

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

  • freetype2 Arch Linux 2.13.3-3

arch linux advisories AVG-2877

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-27363 updated cvss 8.1

freetype: OOB write when attempting to parse font subglyph structures related to TrueType GX and variable font files

  • Red Hat Enterprise Linux 6 freetype, freetype-demos
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat CodeReady Linux Builder EUS (v.8.8) mingw-freetype 2.8-3.el8_8.1, mingw32-freetype 2.8-3.el8_8.1, mingw64-freetype 2.8-3.el8_8.1
    fixed: vendor fix RHSA-2025:8195
  • Red Hat Enterprise Linux AppStream (v. 8) spice-client-win 8.10-1.el8_10, spice-client-win-x64 8.10-1.el8_10, spice-client-win-x86 8.10-1.el8_10
    fixed: vendor fix RHSA-2025:8292
  • Red Hat Enterprise Linux AppStream (v. 9) freetype 2.10.4-10.el9_5
    fixed: vendor fix RHSA-2025:3407
  • Red Hat Enterprise Linux AppStream AUS (v. 8.2) spice-client-win 8.2-1.el8_2, spice-client-win-x64 8.2-1.el8_2, spice-client-win-x86 8.2-1.el8_2
    fixed: vendor fix RHSA-2025:9380
  • Red Hat Enterprise Linux AppStream AUS (v.8.4) spice-client-win 8.4-2.el8_4, spice-client-win-x64 8.4-2.el8_4, spice-client-win-x86 8.4-2.el8_4
    fixed: vendor fix RHSA-2025:8253
  • Red Hat Enterprise Linux AppStream AUS (v.8.6) spice-client-win 8.6-1.el8_6, spice-client-win-x64 8.6-1.el8_6, spice-client-win-x86 8.6-1.el8_6
    fixed: vendor fix RHSA-2025:8219
  • Red Hat Enterprise Linux AppStream E4S (v.8.4) spice-client-win 8.4-2.el8_4, spice-client-win-x64 8.4-2.el8_4, spice-client-win-x86 8.4-2.el8_4
    fixed: vendor fix RHSA-2025:8253
show 28 more
  • Red Hat Enterprise Linux AppStream E4S (v.8.6) spice-client-win 8.6-1.el8_6, spice-client-win-x64 8.6-1.el8_6, spice-client-win-x86 8.6-1.el8_6
    fixed: vendor fix RHSA-2025:8219
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) freetype 2.10.4-7.el9_0
    fixed: vendor fix RHSA-2025:3387
  • Red Hat Enterprise Linux AppStream EUS (v.8.8) spice-client-win 8.8-5.el8_8, spice-client-win-x64 8.8-5.el8_8, spice-client-win-x86 8.8-5.el8_8
    fixed: vendor fix RHSA-2025:8195
  • Red Hat Enterprise Linux AppStream EUS (v.9.2) freetype 2.10.4-10.el9_2
    fixed: vendor fix RHSA-2025:3384
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) freetype 2.10.4-10.el9_4
    fixed: vendor fix RHSA-2025:3383
  • Red Hat Enterprise Linux AppStream TUS (v.8.4) spice-client-win 8.4-2.el8_4, spice-client-win-x64 8.4-2.el8_4, spice-client-win-x86 8.4-2.el8_4
    fixed: vendor fix RHSA-2025:8253
  • Red Hat Enterprise Linux AppStream TUS (v.8.6) spice-client-win 8.6-1.el8_6, spice-client-win-x64 8.6-1.el8_6, spice-client-win-x86 8.6-1.el8_6
    fixed: vendor fix RHSA-2025:8219
  • Red Hat Enterprise Linux BaseOS (v. 8) freetype 2.9.1-10.el8_10
    fixed: vendor fix RHSA-2025:3421
  • Red Hat Enterprise Linux BaseOS (v. 9) freetype 2.10.4-10.el9_5
    fixed: vendor fix RHSA-2025:3407
  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) freetype 2.9.1-5.el8_2.1
    fixed: vendor fix RHSA-2025:3393
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) freetype 2.9.1-7.el8_4
    fixed: vendor fix RHSA-2025:3382
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) freetype 2.9.1-6.el8_6.3
    fixed: vendor fix RHSA-2025:3385
  • Red Hat Enterprise Linux BaseOS E4S (v.8.4) freetype 2.9.1-7.el8_4
    fixed: vendor fix RHSA-2025:3382
  • Red Hat Enterprise Linux BaseOS E4S (v.8.6) freetype 2.9.1-6.el8_6.3
    fixed: vendor fix RHSA-2025:3385
  • Red Hat Enterprise Linux BaseOS E4S (v.9.0) freetype 2.10.4-7.el9_0
    fixed: vendor fix RHSA-2025:3387
  • Red Hat Enterprise Linux BaseOS EUS (v.8.8) freetype 2.9.1-10.el8_8
    fixed: vendor fix RHSA-2025:3386
  • Red Hat Enterprise Linux BaseOS EUS (v.9.2) freetype 2.10.4-10.el9_2
    fixed: vendor fix RHSA-2025:3384
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) freetype 2.10.4-10.el9_4
    fixed: vendor fix RHSA-2025:3383
  • Red Hat Enterprise Linux BaseOS TUS (v.8.4) freetype 2.9.1-7.el8_4
    fixed: vendor fix RHSA-2025:3382
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6) freetype 2.9.1-6.el8_6.3
    fixed: vendor fix RHSA-2025:3385
  • Red Hat Enterprise Linux CRB (v. 8) mingw-freetype 2.8-3.el8_10.1, mingw32-freetype 2.8-3.el8_10.1, mingw64-freetype 2.8-3.el8_10.1
    fixed: vendor fix RHSA-2025:8292
  • Red Hat Enterprise Linux Server (v. 7 ELS) freetype 2.8-15.el7_9.1 Red Hat Enterprise Linux Server Optional (v. 7 ELS) freetype-demos 2.8-15.el7_9.1
    fixed: vendor fix RHSA-2025:3395
  • Red Hat OpenShift Container Platform 4.12 rhcos 412.86.202503310142-0, rhcos 412.86.202504240545-0, openshift4/ose-tests v4.12.0-202503310133.p0.g893161e.assembly.stream.el8, openshift4/ose-tools-rhel8 v4.12.0-202503310133.p0.gd691257.assembly.stream.el8, openshift4/network-tools-rhel8 v4.12.0-202503310133.p0.gc76613c.assembly.stream.el8, openshift4/ose-kuryr-cni-rhel8 v4.12.0-202503310133.p0.g8fd2f8b.assembly.stream.el8, +1 more
    fixed: vendor fix RHSA-2025:3573
  • Red Hat build of OpenJDK 11 java-11-openjdk Red Hat build of OpenJDK 17 java-17-openjdk Red Hat build of OpenJDK 21 java-21-openjdk-rhel7 java-21-openjdk-rhel7
    not affected: vulnerable code not present
  • Red Hat Enterprise Linux 7 thunderbird
    not affected: vulnerable code not in execute path
  • Red Hat Enterprise Linux 8 java-17-openjdk, java-21-openjdk, java-17-openjdk-src, java-21-openjdk-src, java-17-openjdk-demo, java-21-openjdk-demo, +38 more
    not affected: vulnerable code not present
  • Red Hat Enterprise Linux 9 firefox, firefox-x11, java-17-openjdk, java-21-openjdk, java-17-openjdk-src, java-21-openjdk-src, +40 more
    not affected: vulnerable code not in execute path
  • Red Hat Enterprise Linux 10 gjs, freetype, java-21-openjdk Red Hat OpenShift Container Platform 4.12 openshift4/ose-cli v4.12.0-202503181728.p0.gd691257.assembly.stream.el8, openshift4/ose-cli v4.12.0-202504010132.p0.gd691257.assembly.stream.el8, openshift4/ose-pod v4.12.0-202503181728.p0.g1eb8682.assembly.stream.el8, openshift4/ose-pod v4.12.0-202504010132.p0.g1eb8682.assembly.stream.el8, openshift4/ose-etcd v4.12.0-202503181728.p0.gbb82e89.assembly.stream.el8, openshift4/ose-etcd v4.12.0-202504010132.p0.gbb82e89.assembly.stream.el8, +371 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. 0-day patched (Project Zero)
  2. Published
  3. Added to CISA KEV
  4. CISA SSVC: exploitation active
  5. CISA patch deadline

Known exploited

Added
18 mo ago
Patch by
2025-05-27 (17 mo ago)
Ransomware
Not known
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Vendor, product
FreeType, FreeType
CISA name
FreeType Out-of-Bounds Write Vulnerability

Zero-day

Detected in real attacks while still unknown to the vendor and the public, per Google Project Zero's 0day In-the-Wild tracker.

Patched
2025-03-11
Details
project zero tracker

ATT&CK techniques

How it is exploited and what it leads to, in MITRE ATT&CK terms.

  • T1204.002 Malicious File exploitation
  • T1658 Exploitation for Client Execution exploitation, mobile
  • T1574 Hijack Execution Flow primary impact
  • T1625 Hijack Execution Flow primary impact, mobile
  • T1499.004 Application or System Exploitation secondary impact
  • T1642 Endpoint Denial of Service secondary impact, mobile

kev release 2025-07-28, att&ck v16.1. KEV to ATT&CK mappings by the MITRE Center for Threat-Informed Defense (Mappings Explorer, Apache-2.0). © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. Terms of use

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
total
Assessed
18 mo ago

Exploit prediction

27.77% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C/CR:H/IR:H/AR:H/MAV:N/MAC:L/MPR:N/MUI:N/MS:U/MC:H/MI:H/MA:H
CNA 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
OSV 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
julia FreeType2_jll
<2.13.1+0
2.13.1+0

Affected products

  • FreeType FreeType

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.