CVE-2025-66293

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 73% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Elevated
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: Elevated riskExposed: 0

A fix is available — apply it.

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to 1.6.52, an out-of-bounds read vulnerability in libpng's simplified API allows reading up to 1012 bytes beyond the png_sRGB_base[512] array when processing valid palette PNG images with partial transparency and gamma correction. The PNG files that trigger this vulnerability are valid per the PNG specification; the bug is in libpng's internal state management. Upgrade to libpng 1.6.52 or later.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
48(Track)
EG Risk 48/100SSVC: Track

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
Severity71% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

December 3, 2025

Last Modified

June 17, 2026

Advisory Details (7)

Auto-updated Aug 8, 2026
Patch available. Sources: github_commit, github.
generic Patch Available

[Security Report] Out-of-bounds Read in libpng 1.6.51 · Issue #764 · pnggroup/libpng · GitHub

https://github.com/pnggroup/libpng/issues/764
generic

oss-security - Re: libpng 1.6.52: Out-of-bounds vulnerability fixed: CVE-2025-66293

http://www.openwall.com/lists/oss-security/2025/12/03/8
generic

oss-security - Re: libpng 1.6.52: Out-of-bounds vulnerability fixed: CVE-2025-66293

http://www.openwall.com/lists/oss-security/2025/12/03/7
generic

oss-security - Re: libpng 1.6.52: Out-of-bounds vulnerability fixed: CVE-2025-66293

http://www.openwall.com/lists/oss-security/2025/12/03/6
github Patch Available

Out-of-bounds read in `png_image_read_composite` · Advisory · pnggroup/libpng · GitHub

https://github.com/pnggroup/libpng/security/advisories/GHSA-9mpm-9pxh-mg4f
github_commit

commit a05a48b756de (pnggroup/libpng)

Fix landed in pnggroup/libpng commit a05a48b756de — awaiting tagged release

https://github.com/pnggroup/libpng/commit/a05a48b756de63e3234ea6b3b938b8f5f862484a
github_commit

commit 788a624d7387 (pnggroup/libpng)

Fix landed in pnggroup/libpng commit 788a624d7387 — awaiting tagged release

https://github.com/pnggroup/libpng/commit/788a624d7387a758ffd5c7ab010f1870dea753a1

Vendor Advisories for CVE-2025-66293(20)

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

Patch Availability(28)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibpng16-tools (1.6.20-2ubuntu0.1~esm3) @ xenial2026-05-29ubuntu
ubuntulibpng16-16t64 (1.6.50-1ubuntu0.3) @ questing2026-05-29ubuntu
redhatjava-17-openjdk-1:17.0.19.0.10-1.el92026-04-24redhat
redhatjava-11-openjdk-portable2026-04-22redhat
redhatjava-11-openjdk-1:11.0.31.0.11-1.el92026-04-22redhat
redhatlibpng-main-1.6.56-1.hum12026-04-07redhat
redhatrhcos-415.92.202603101737-02026-03-19redhat
redhatrhcos-412.86.202603041314-02026-03-12redhat
redhatrhcos-413.92.202602240113-02026-03-05redhat
redhatrhcos-414.92.202602171627-02026-02-26redhat
redhatrhcos-417.94.202602090846-02026-02-18redhat
redhatrhcos-416.94.202602101357-02026-02-18redhat
redhatrhcos-4.19.9.6.202602112047-02026-02-18redhat
redhatrhcos-418.94.202602022246-02026-02-11redhat
redhatlibpng-2:1.6.34-8.el8_2.12026-01-08redhat
redhatlibpng-2:1.6.34-8.el8_4.12026-01-08redhat
redhatlibpng-2:1.6.34-8.el8_6.12026-01-08redhat
redhatdiscovery/discovery-ui-rhel9:17679045732026-01-08redhat
redhatlibpng-2:1.6.34-8.el8_8.12026-01-08redhat
redhatlibpng-2:1.6.34-9.el8_102026-01-07redhat
redhatlibpng-2:1.6.37-12.el9_0.12026-01-07redhat
redhatlibpng-2:1.6.37-12.el9_7.12026-01-07redhat
redhatlibpng-2:1.6.37-12.el9_6.12026-01-07redhat
redhatlibpng-2:1.6.40-8.el10_1.12026-01-07redhat
redhatlibpng-2:1.6.40-8.el10_0.12026-01-07redhat
redhatlibpng-2:1.6.37-12.el9_4.12026-01-07redhat
redhatlibpng-2:1.6.37-12.el9_2.12026-01-07redhat
redhatmingw-libpng-0:1.6.34-1.el8_102026-01-06redhat

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

(9 across 9 ecosystems)
Alpine:v3.20(1)
PackageVulnerable rangeFixed inDependents
libpng—1.6.53-r0—
Alpine:v3.21(1)
PackageVulnerable rangeFixed inDependents
libpng—1.6.53-r0—
Alpine:v3.22(1)
PackageVulnerable rangeFixed inDependents
libpng—1.6.53-r0—
Alpine:v3.23(1)
PackageVulnerable rangeFixed inDependents
libpng—1.6.53-r0—
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
libpng—1.6.53-r0—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
libpng1.61.6.37-31.6.37-3+deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
libpng1.61.6.39-21.6.39-2+deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
libpng1.61.6.48-11.6.48-1+deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
libpng1.61.6.48-1, 1.6.49-1~exp1, 1.6.50-1, 1.6.50-1~exp1, 1.6.51-11.6.52-1—

Weakness Classification(1)

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

Additional Vendor Advisories

(10)

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 8× in last 7d / 35× 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 136 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2025-66293?
CVE-2025-66293 is a high vulnerability published on December 3, 2025. LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to 1.6.52, an out-of-bounds read vulnerability in libpng's simplified API allows reading up to 1012 bytes beyond the pngsRGBbase[512] array when…
When was CVE-2025-66293 disclosed?
CVE-2025-66293 was first published in the National Vulnerability Database on December 3, 2025, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-66293 actively exploited?
CVE-2025-66293 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 71.7% of all scored CVEs.
What is the CVSS score of CVE-2025-66293?
CVE-2025-66293 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2025-66293?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-66293, 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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