CVE-2025-27363

HIGHNVD 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
8.1
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 26%CVSS: 8.1Exploit: NoneExposed: 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)
EPSS
97.8%
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(17)

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

Patch Availability(18)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibfreetype6-dev (2.6.1-0.1ubuntu2.5+esm2) @ xenial2026-07-16ubuntu
ubuntulibfreetype6-dev (2.11.1+dfsg-1ubuntu0.3) @ jammy2026-07-16ubuntu
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-0:8.6-12025-05-27redhat
redhatspice-client-win-0:8.8-52025-05-27redhat
redhatrhcos-412.86.202503310142-02025-04-10redhat
redhatfreetype-0:2.9.1-7.el8_42025-03-31redhat
redhatfreetype-0:2.9.1-5.el8_2.12025-03-31redhat
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-0:2.10.4-10.el9_52025-03-31redhat
redhatfreetype-0:2.10.4-10.el9_42025-03-31redhat
redhatfreetype-0:2.9.1-10.el8_102025-03-31redhat
redhatfreetype-0:2.10.4-7.el9_02025-03-31redhat

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.

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 133× in last 7d / 558× 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 923 total refreshes for this CVE.

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

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 ↗

Related CVEs(same vendor + same CWE)

Frequently asked(6)

What is CVE-2025-27363?
CVE-2025-27363 is a high 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

Explore the affected products and dependency analysis for CVE-2025-27363

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