CVE-2025-27363VulnerabilityPublished 31 Mar 2025Updated 11 Oct 2026

SUSE · security update for freetype

Affects SUSESource GCVE Database

Exploited in the wild · KEV due 27 May 2025 · 27% EPSS · fixed in 9.8 : patch SUSE now.

Data as of 25 Oct 2026, 19:02 UTC

Exploitation

Actively exploited

High severity · No CVSS score from NVD or the CNA

KEV deadline: 27 May 2025 US federal agencies must patch by this date; a sensible deadline for everyone else.
EPSS: 27.7% chance of exploitation in 30 days – higher than 98% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 9.8, 8.7, 8.5 +1

Exploitation evidence

t = 0 is the CVE’s publication on cve.org

Disclosed: evidence found.
CVE published 31 Mar 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: evidence found.
Listed in CISA KEV 36 days after disclosure
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

CVE published
on cve.org
2025-03-31, t = 0
Added to CISA KEV (opens in a new tab)
exploitation confirmed
2025-05-06, 36 days after disclosure
KEV remediation due
US federal deadline
2025-05-27, 57 days after disclosure

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CISA KEV (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade SUSE to 9.8, 8.7, 8.5 or 8.3.

Affected software

Product	Affected	Fixed in
SUSE Product Security Team SUSE	Affected >=9.0.0 <9.8 >=8.4 <8.5 >=8.6 <8.7 >=8.2 <8.3 Red Hat Red Hat Enterprise Linux Red Hat Enterprise Linux BaseOS AUS (v.8.4) Red Hat Enterprise Linux BaseOS TUS (v.8.4) Red Hat Enterprise Linux BaseOS E4S (v.8.4) Red Hat Enterprise Linux AppStream EUS (v.9.4) Red Hat Enterprise Linux BaseOS EUS (v.9.4) s390x SUSE i686 freetype-0:2.10.4-10.el9_5.i686 freetype-devel-0:2.10.4-10.el9_5.i686 x86_64	Fixed in 9.8 8.5 8.7 8.3

Description

MinGW Windows Freetype library. Security Fix(es): * freetype: OOB write when attempting to parse font subglyph structures related to TrueType GX and variable font files (CVE-2025-27363) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Impact

The vulnerability allows an out-of-bounds write during font parsing, which could cause memory corruption. Red Hat rates the security impact as Important (high severity). There are no known exploits in the wild at this time. The impact could potentially affect any application or service using the vulnerable FreeType library to process maliciously crafted font files.

Mitigation

Red Hat has released security updates that fix this vulnerability in affected FreeType packages for Red Hat Enterprise Linux 8.2 AUS, 9.4 Extended Update Support, and related variants. Users should apply the provided updates as detailed in the Red Hat advisories (RHSA-2025:3383 and RHSA-2025:3393) and the referenced article https://access.redhat.com/articles/11258. No additional mitigation steps are indicated beyond applying these official patches.

Summary

CVE-2025-27363 is an out-of-bounds (OOB) write vulnerability in the FreeType font engine that occurs when parsing font subglyph structures related to TrueType GX and variable font files. This flaw could potentially lead to memory corruption. Red Hat has issued security advisories and updates to fix this vulnerability in multiple Red Hat Enterprise Linux versions, including 8.2 AUS and 9.4 Extended Update Support. The vulnerability is tracked under CWE-787 (Out-of-bounds Write).

CWE-787Out-of-bounds Write (opens in a new tab)
Base weaknessLikelihood of exploit: HighCWE Top 25 (2025): #5
The product writes data past the end, or before the beginning, of the intended buffer.
Requirements · Language Selection
Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Architecture and Design · Libraries or Frameworks
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Operation · Build and Compilation · Environment Hardening
Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index…
OWASP Cheat Sheets
XML Security (opens in a new tab)
Mass Assignment (opens in a new tab)
OWASP ASVS 4.0.3
V13.3.1 (opens in a new tab)
V5.1.4 (opens in a new tab)
V5.1.3 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

Community reviews

Loading reviews…

Exploitation evidence

Timeline

What to do

Affected software

Description

AI analysisMachine-generated, updated 11 Aug 2026, 20:22 UTC

WeaknessesCWE-787

Technical details

References

Community reviews

Related threats