CVE-2025-64720

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: 0.4%, top 66% 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: 0.4%CVSS: 7.1Exploit: Elevated riskExposed services: Not assessed

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. From version 1.6.0 to before 1.6.51, an out-of-bounds read vulnerability exists in png_image_read_composite when processing palette images with PNG_FLAG_OPTIMIZE_ALPHA enabled. The palette compositing code in png_init_read_transformations incorrectly applies background compositing during premultiplication, violating the invariant component ≤ alpha × 257 required by the simplified PNG API. This issue has been patched in version 1.6.51.

CVSS v3
7.1
EG Score
7.1HIGHmedium confidence
EG Risk
48
EG Risk 48/100

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%
EPSS PROB
0.4%
EPSS %ILE
33rd
KEV
Not listed

Published

November 25, 2025

Last Modified

June 17, 2026

Advisory Details (4)

Auto-updated Aug 8, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_pr, github.
githubMentions a patch (unverified)🟡 PoC Available

Buffer overflow in `png_image_read_composite` via incorrect palette premultiplication · Advisory · pnggroup/libpng · GitHub

https://github.com/pnggroup/libpng/security/advisories/GHSA-hfc7-ph9c-wcww
github_pr

Fix a buffer overflow in `png_init_read_transformations`

Fix merged in pnggroup/libpng PR #751 on 2025-11-14 — awaiting tagged release

https://github.com/pnggroup/libpng/pull/751
generic

Index out of bounds in libpng-1.6.37/pngread.c -> png_image_read_composite() · Issue #686 · pnggroup/libpng · GitHub

https://github.com/pnggroup/libpng/issues/686
github_commit

commit 08da33b4c88c (pnggroup/libpng)

Fix landed in pnggroup/libpng commit 08da33b4c88c — awaiting tagged release

https://github.com/pnggroup/libpng/commit/08da33b4c88cfcd36e5a706558a8d7e0e4773643

Vendor Advisories for CVE-2025-64720(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 / EcosystemFix (by version range) / PatchReleasedSource
ubuntulibpng16-16 (1.6.37-2ubuntu0.1~esm1) @ focal2026-05-29ubuntu
redhatlibpng-main-1.6.56-1.hum12026-04-07redhat
redhatjava-1.8.0-openjdk-1:1.8.0.482.b08-1.el92026-01-26redhat
redhatjava-1.8.0-openjdk-portable2026-01-26redhat
redhatjava-17-openjdk-portable2026-01-26redhat
redhatjava-21-openjdk-portable2026-01-26redhat
redhatjava-25-openjdk-portable2026-01-26redhat
redhatjava-25-openjdk-1:25.0.2.0.10-1.el92026-01-26redhat
redhatjava-21-openjdk-1:21.0.10.0.7-1.el92026-01-22redhat
redhatjava-17-openjdk-1:17.0.18.0.8-1.el92026-01-22redhat
redhatjava-11-openjdk-portable2026-01-21redhat
redhatjava-11-openjdk-1:11.0.30.0.7-1.el92026-01-21redhat
redhatpatch2026-01-21redhat
redhatlibpng-2:1.6.34-8.el8_2.12026-01-08redhat
redhatlibpng-2:1.6.34-8.el8_8.12026-01-08redhat
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-2:1.6.37-12.el9_7.12026-01-07redhat
redhatlibpng-2:1.6.37-12.el9_2.12026-01-07redhat
redhatlibpng-2:1.6.40-8.el10_1.12026-01-07redhat
redhatlibpng-2:1.6.40-8.el10_0.12026-01-07redhat
redhatlibpng-2:1.6.34-9.el8_102026-01-07redhat
redhatlibpng-2:1.6.37-12.el9_0.12026-01-07redhat
redhatlibpng-2:1.5.13-8.el7_9.12026-01-07redhat
redhatlibpng-2:1.6.37-12.el9_4.12026-01-07redhat
redhatlibpng-2:1.6.37-12.el9_6.12026-01-07redhat
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 rangeFix by version rangeDependents
libpng—
  • 1.6.0 up to 1.6.53-r0: fixed in 1.6.53-r0
—
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
libpng—
  • 1.6.0 up to 1.6.53-r0: fixed in 1.6.53-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
libpng—
  • 1.6.0 up to 1.6.51-r0: fixed in 1.6.51-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
libpng—
  • 1.6.0 up to 1.6.51-r0: fixed in 1.6.51-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
libpng—
  • 1.6.0 up to 1.6.51-r0: fixed in 1.6.51-r0
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
libpng1.61.6.37-3
  • every version up to 1.6.37-3+deb11u1: fixed in 1.6.37-3+deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
libpng1.61.6.39-2
  • every version up to 1.6.39-2+deb12u1: fixed in 1.6.39-2+deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
libpng1.61.6.48-1
  • every version up to 1.6.48-1+deb13u1: fixed in 1.6.48-1+deb13u1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
libpng1.61.6.48-1, 1.6.49-1~exp1, 1.6.50-1, 1.6.50-1~exp1
  • every version up to 1.6.51-1: fixed in 1.6.51-1
—

Weakness Classification(1)

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

Additional Vendor Advisories

(8)

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 7× in last 7d / 29× 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 171 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2025-64720?
CVE-2025-64720 is a high vulnerability published on November 25, 2025. LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, an out-of-bounds read vulnerability exists in pngimagereadcomposite when processing palette images with…
When was CVE-2025-64720 disclosed?
CVE-2025-64720 was first published on November 25, 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-2025-64720 actively exploited?
CVE-2025-64720 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (33rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-64720?
CVE-2025-64720 has a CVSS base score of 7.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2025-64720?
A fix for CVE-2025-64720 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2025-64720 are linked in the Vendor Advisories panel on this page.

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