CVE-2025-27363

CRITICALNVD 8.19.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2025-05-06), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.1 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 5 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 28%CVSS: 8.1Exploit: cisa kev · ssvc active · epss top5pct · public exploitExposed: 0

A fix is available — apply it.

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.

CVSS v3
8.1
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

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 computed
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
28%
EPSS %ILE
98%
KEV
⚠ Exploited

Published

March 11, 2025

Last Modified

April 20, 2026

Advisory Details (10)

Auto-updated May 19, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic

oss-security - Re: CVE-2025-27363: out of bounds write in FreeType <= 2.13.0

http://www.openwall.com/lists/oss-security/2025/03/14/3
generic

oss-security - Re: CVE-2025-27363: out of bounds write in FreeType <= 2.13.0

http://www.openwall.com/lists/oss-security/2025/03/14/2
generic

oss-security - Re: CVE-2025-27363: out of bounds write in FreeType <= 2.13.0

http://www.openwall.com/lists/oss-security/2025/03/14/1
generic🔴 Active Exploitation

oss-security - Re: CVE-2025-27363: out of bounds write in FreeType <= 2.13.0

http://www.openwall.com/lists/oss-security/2025/03/13/8
generic🔴 Active Exploitation

oss-security - Re: CVE-2025-27363: out of bounds write in FreeType <= 2.13.0

http://www.openwall.com/lists/oss-security/2025/03/13/3
generic🔴 Active Exploitation

oss-security - CVE-2025-27363: out of bounds write in FreeType <= 2.13.0

http://www.openwall.com/lists/oss-security/2025/03/13/2
generic

oss-security - Re: CVE-2025-27363: out of bounds write in FreeType <= 2.13.0

http://www.openwall.com/lists/oss-security/2025/03/13/12
generic🔴 Active Exploitation

oss-security - Re: CVE-2025-27363: out of bounds write in FreeType <= 2.13.0

http://www.openwall.com/lists/oss-security/2025/03/13/11
generic🔴 Active Exploitation

oss-security - CVE-2025-27363: out of bounds write in FreeType <= 2.13.0

http://www.openwall.com/lists/oss-security/2025/03/13/1
generic🔴 Active Exploitation

CVE-2025-27363

https://www.facebook.com/security/advisories/cve-2025-27363

Vendor Advisories for CVE-2025-27363(18)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(19)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibfreetype6-dev (2.10.1-2ubuntu0.4) @ focal2026-08-31ubuntu
ubuntulibfreetype6-dev (2.5.2-1ubuntu2.8+esm3) @ trusty2026-08-31ubuntu
redhatspice-client-win-0:8.2-12025-06-23redhat
redhatspice-client-win-0:8.10-12025-05-29redhat
redhatspice-client-win-0:8.4-22025-05-28redhat
redhatspice-client-win-0:8.8-52025-05-27redhat
redhatspice-client-win-0:8.6-12025-05-27redhat
redhatrhcos-412.86.202504240545-02025-05-08redhat
redhatrhcos-412.86.202503310142-02025-04-10redhat
redhatfreetype-0:2.9.1-5.el8_2.12025-03-31redhat
redhatfreetype-0:2.10.4-10.el9_42025-03-31redhat
redhatfreetype-0:2.10.4-7.el9_02025-03-31redhat
redhatfreetype-0:2.10.4-10.el9_22025-03-31redhat
redhatfreetype-0:2.8-15.el7_9.12025-03-31redhat
redhatfreetype-0:2.9.1-6.el8_6.32025-03-31redhat
redhatfreetype-0:2.9.1-10.el8_82025-03-31redhat
redhatfreetype-0:2.9.1-10.el8_102025-03-31redhat
redhatfreetype-0:2.9.1-7.el8_42025-03-31redhat
redhatfreetype-0:2.10.4-10.el9_52025-03-31redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(7 across 7 ecosystems)
Alpine:v3.22(1)
PackageVulnerable rangeFixed inDependents
freetype—2.13.1-r0—
Alpine:v3.23(1)
PackageVulnerable rangeFixed inDependents
freetype—2.13.1-r0—
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
freetype—2.13.1-r0—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
freetype2.10.4+dfsg-1, 2.10.4+dfsg-1+deb11u12.10.4+dfsg-1+deb11u2—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
freetype2.12.1+dfsg-5, 2.12.1+dfsg-5+deb12u1, 2.12.1+dfsg-5+deb12u2, 2.12.1+dfsg-5+deb12u32.12.1+dfsg-5+deb12u4—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
freetype—2.13.1+dfsg-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
freetype—2.13.1+dfsg-1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(2)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 96× in last 7d / 396× 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.

Showing the most recent 100 of 1,233 total refreshes for this CVE.

  1. 2026-08-31 08:57 UTCVendor advisory
  2. 2026-08-31 08:57 UTCGHSA enrichment
  3. 2026-08-31 04:43 UTCVendor advisory
  4. 2026-08-31 04:43 UTCGHSA enrichment
  5. 2026-08-31 00:29 UTCVendor advisory
  6. 2026-08-31 00:29 UTCGHSA enrichment
  7. 2026-08-30 20:14 UTCEG score recompute
  8. 2026-08-30 20:14 UTCVendor advisory
  9. 2026-08-30 20:14 UTCGHSA enrichment
  10. 2026-08-30 19:16 UTCEPSS rescore
  11. 2026-08-30 19:16 UTCEPSS rescore
  12. 2026-08-30 16:00 UTCVendor advisory
  13. 2026-08-30 16:00 UTCGHSA enrichment
  14. 2026-08-30 11:45 UTCVendor advisory
  15. 2026-08-30 11:45 UTCGHSA enrichment
  16. 2026-08-30 07:31 UTCVendor advisory
  17. 2026-08-30 07:31 UTCGHSA enrichment
  18. 2026-08-30 03:16 UTCEG score recompute
  19. 2026-08-30 03:16 UTCVendor advisory
  20. 2026-08-30 03:16 UTCGHSA enrichment
  21. 2026-08-30 01:21 UTCEPSS rescore
  22. 2026-08-29 23:01 UTCVendor advisory
  23. 2026-08-29 23:01 UTCGHSA enrichment
  24. 2026-08-29 18:46 UTCVendor advisory
  25. 2026-08-29 18:46 UTCGHSA enrichment
Show 75 more
  1. 2026-08-29 14:30 UTCVendor advisory
  2. 2026-08-29 14:30 UTCGHSA enrichment
  3. 2026-08-29 10:16 UTCVendor advisory
  4. 2026-08-29 10:16 UTCGHSA enrichment
  5. 2026-08-29 06:01 UTCVendor advisory
  6. 2026-08-29 06:01 UTCGHSA enrichment
  7. 2026-08-29 01:45 UTCEG score recompute
  8. 2026-08-29 01:45 UTCVendor advisory
  9. 2026-08-29 01:45 UTCGHSA enrichment
  10. 2026-08-28 21:40 UTCEPSS rescore
  11. 2026-08-28 21:30 UTCVendor advisory
  12. 2026-08-28 21:29 UTCGHSA enrichment
  13. 2026-08-28 17:14 UTCVendor advisory
  14. 2026-08-28 17:14 UTCGHSA enrichment
  15. 2026-08-28 12:57 UTCVendor advisory
  16. 2026-08-28 12:56 UTCGHSA enrichment
  17. 2026-08-28 08:41 UTCVendor advisory
  18. 2026-08-28 08:41 UTCGHSA enrichment
  19. 2026-08-28 04:25 UTCVendor advisory
  20. 2026-08-28 04:25 UTCGHSA enrichment
  21. 2026-08-28 00:10 UTCVendor advisory
  22. 2026-08-28 00:10 UTCGHSA enrichment
  23. 2026-08-27 19:52 UTCVendor advisory
  24. 2026-08-27 19:52 UTCGHSA enrichment
  25. 2026-08-27 17:22 UTCCISA KEV update
  26. 2026-08-27 15:37 UTCEG score recompute
  27. 2026-08-27 15:37 UTCVendor advisory
  28. 2026-08-27 15:37 UTCGHSA enrichment
  29. 2026-08-27 14:24 UTCEPSS rescore
  30. 2026-08-27 11:22 UTCVendor advisory
  31. 2026-08-27 11:22 UTCGHSA enrichment
  32. 2026-08-27 07:08 UTCVendor advisory
  33. 2026-08-27 07:07 UTCGHSA enrichment
  34. 2026-08-27 02:52 UTCVendor advisory
  35. 2026-08-27 02:52 UTCGHSA enrichment
  36. 2026-08-26 22:38 UTCVendor advisory
  37. 2026-08-26 22:38 UTCGHSA enrichment
  38. 2026-08-26 18:24 UTCEG score recompute
  39. 2026-08-26 18:24 UTCVendor advisory
  40. 2026-08-26 18:24 UTCGHSA enrichment
  41. 2026-08-26 17:41 UTCCISA KEV update
  42. 2026-08-26 14:45 UTCEPSS rescore
  43. 2026-08-26 14:09 UTCVendor advisory
  44. 2026-08-26 14:09 UTCGHSA enrichment
  45. 2026-08-26 09:55 UTCVendor advisory
  46. 2026-08-26 09:55 UTCGHSA enrichment
  47. 2026-08-26 05:40 UTCVendor advisory
  48. 2026-08-26 05:40 UTCGHSA enrichment
  49. 2026-08-26 01:25 UTCVendor advisory
  50. 2026-08-26 01:25 UTCGHSA enrichment
  51. 2026-08-25 21:10 UTCVendor advisory
  52. 2026-08-25 21:10 UTCGHSA enrichment
  53. 2026-08-25 16:55 UTCEG score recompute
  54. 2026-08-25 16:55 UTCVendor advisory
  55. 2026-08-25 16:55 UTCGHSA enrichment
  56. 2026-08-25 13:48 UTCEPSS rescore
  57. 2026-08-25 12:41 UTCVendor advisory
  58. 2026-08-25 12:41 UTCGHSA enrichment
  59. 2026-08-25 08:27 UTCVendor advisory
  60. 2026-08-25 08:27 UTCGHSA enrichment
  61. 2026-08-25 04:12 UTCVendor advisory
  62. 2026-08-25 04:12 UTCGHSA enrichment
  63. 2026-08-24 23:58 UTCVendor advisory
  64. 2026-08-24 23:58 UTCGHSA enrichment
  65. 2026-08-24 19:43 UTCVendor advisory
  66. 2026-08-24 19:43 UTCGHSA enrichment
  67. 2026-08-24 18:52 UTCCISA KEV update
  68. 2026-08-24 15:28 UTCEG score recompute
  69. 2026-08-24 15:28 UTCVendor advisory
  70. 2026-08-24 15:28 UTCGHSA enrichment
  71. 2026-08-24 14:16 UTCEPSS rescore
  72. 2026-08-24 11:14 UTCEG score recompute
  73. 2026-08-24 11:14 UTCVendor advisory
  74. 2026-08-24 11:14 UTCGHSA enrichment
  75. 2026-08-24 06:59 UTCVendor advisory

Publicly available exploits

(3 references)

Working exploit code is in the public domain (3 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCtin-z/CVE-2025-27363
    First seen Jul 23, 2025

    Integer overflow in FreeType software, which also affects Chrome

    Open source ↗
  • GitHub PoCov3rf1ow/CVE-2025-27363
    First seen May 26, 2025
    Open source ↗
  • GitHub PoCzhuowei/CVE-2025-27363-proof-of-concept
    First seen Mar 23, 2025
    Open source ↗

Frequently asked(6)

What is CVE-2025-27363?
CVE-2025-27363 is a critical vulnerability published on March 11, 2025. 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…
When was CVE-2025-27363 disclosed?
CVE-2025-27363 was first published in the National Vulnerability Database on March 11, 2025, with the most recent update on April 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-27363 actively exploited?
Yes. CISA added CVE-2025-27363 to the Known Exploited Vulnerabilities catalog on May 6, 2025, affecting FreeType FreeType. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2025-27363?
CVE-2025-27363 has a CVSS v3 base score of 8.1 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2025-27363?
CVE-2025-27363 affects FreeType FreeType. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2025-27363?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-27363, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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