CVE-2026-56378

HIGHNVD 8.28.2—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.2 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 68% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
8.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.2Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

ImageMagick before 7.1.2-15 (and 6.x before 6.9.13-40) contains a heap out-of-bounds read in the PCD coder's DecodeImage loop. A crafted PCD file can trigger a one-byte heap out-of-bounds read during image decoding, resulting in denial of service and potential disclosure of an adjacent heap byte.

CVSS v3
8.2
EG Score
8.2(medium)
EG Risk
42(Track)
EG Risk 42/100SSVC: 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
Severity82% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
32%
KEV
Not listed

Published

June 21, 2026

Last Modified

June 26, 2026

Advisory Details (2)

Auto-updated Jun 26, 2026
Patch available. Sources: github.
generic

ImageMagick - Heap Out-of-Bounds Read in PCD Decoder | Advisories | VulnCheck

https://www.vulncheck.com/advisories/imagemagick-heap-out-of-bounds-read-in-pcd-decoder
github Patch Available

PCD one byte heap out-of-bounds read · Advisory · ImageMagick/ImageMagick · GitHub

https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-wgxp-q8xq-wpp9

Vendor Advisories for CVE-2026-56378(1)

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

Affected Packages

(23 across 5 ecosystems)
NuGet(19)
PackageVulnerable rangeFixed inDependents
Magick.NET-Q16-AnyCPU10.0.0 ... 9.1.2 (209 versions)14.10.3—
Magick.NET-Q16-arm6410.0.0 ... 9.1.2 (54 versions)14.10.3—
Magick.NET-Q16-HDRI-AnyCPU10.0.0 ... 9.1.2 (206 versions)14.10.3—
Magick.NET-Q16-HDRI-arm6410.0.0 ... 9.1.2 (54 versions)14.10.3—
Magick.NET-Q16-HDRI-OpenMP-arm6410.0.0 ... 9.1.2 (54 versions)14.10.3—
Magick.NET-Q16-HDRI-OpenMP-x6410.0.0 ... 9.1.2 (106 versions)14.10.3—
Magick.NET-Q16-HDRI-x6410.0.0 ... 9.1.2 (206 versions)14.10.3—
Magick.NET-Q16-HDRI-x8610.0.0 ... 9.1.2 (206 versions)14.10.3—
Magick.NET-Q16-OpenMP-arm6410.0.0 ... 9.1.2 (54 versions)14.10.3—
Magick.NET-Q16-OpenMP-x6410.0.0 ... 9.1.2 (106 versions)14.10.3—
Magick.NET-Q16-OpenMP-x86—14.10.3—
Magick.NET-Q16-x6410.0.0 ... 9.1.2 (225 versions)14.10.3—
Magick.NET-Q16-x8610.0.0 ... 9.1.2 (225 versions)14.10.3—
Magick.NET-Q8-AnyCPU10.0.0 ... 9.1.2 (209 versions)14.10.3—
Magick.NET-Q8-arm6410.0.0 ... 9.1.2 (54 versions)14.10.3—
Magick.NET-Q8-OpenMP-arm6410.0.0 ... 9.1.2 (54 versions)14.10.3—
Magick.NET-Q8-OpenMP-x6410.0.0 ... 9.1.2 (106 versions)14.10.3—
Magick.NET-Q8-x6410.0.0 ... 9.1.2 (225 versions)14.10.3—
Magick.NET-Q8-x8610.0.0 ... 9.1.2 (225 versions)14.10.3—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
imagemagick8:6.9.11.60+dfsg-1.3 ... 8:6.9.11.60+dfsg-1.3+deb11u9 (15 versions)8:6.9.11.60+dfsg-1.3+deb11u15—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
imagemagick8:6.9.11.60+dfsg-1.6 ... 8:6.9.11.60+dfsg-1.6+deb12u9 (12 versions)8:6.9.11.60+dfsg-1.6+deb12u12—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
imagemagick8:7.1.1.43+dfsg1-1 ... 8:7.1.1.43+dfsg1-1+deb13u9 (11 versions)8:7.1.1.43+dfsg1-1+deb13u11—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
imagemagick8:7.1.1.43+dfsg1-1 ... 8:7.1.2.8+dfsg1-1 (10 versions)8:7.1.2.15+dfsg1-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 106× 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. 2026-08-25 13:49 UTCEPSS rescore
  2. 2026-08-25 01:09 UTCEG score recompute
  3. 2026-08-25 01:09 UTCGHSA enrichment
  4. 2026-08-24 13:57 UTCEG score recompute
  5. 2026-08-24 13:57 UTCGHSA enrichment
  6. 2026-08-23 21:41 UTCGHSA enrichment
  7. 2026-08-23 10:29 UTCEG score recompute
  8. 2026-08-23 10:29 UTCGHSA enrichment
  9. 2026-08-23 00:19 UTCEPSS rescore
  10. 2026-08-22 22:56 UTCEG score recompute
  11. 2026-08-22 22:56 UTCGHSA enrichment
  12. 2026-08-21 23:49 UTCEPSS rescore
  13. 2026-08-21 17:35 UTCGHSA enrichment
  14. 2026-08-21 06:18 UTCEG score recompute
  15. 2026-08-21 06:18 UTCGHSA enrichment
  16. 2026-08-20 22:55 UTCEPSS rescore
  17. 2026-08-20 19:05 UTCGHSA enrichment
  18. 2026-08-20 07:53 UTCEG score recompute
  19. 2026-08-20 07:53 UTCGHSA enrichment
  20. 2026-08-19 17:04 UTCEPSS rescore
  21. 2026-08-19 05:47 UTCEG score recompute
  22. 2026-08-19 05:47 UTCGHSA enrichment
  23. 2026-08-18 13:48 UTCEPSS rescore
  24. 2026-08-17 13:47 UTCEPSS rescore
  25. 2026-08-17 12:42 UTCGHSA enrichment
Show 75 more
  1. 2026-08-17 01:30 UTCEG score recompute
  2. 2026-08-17 01:30 UTCGHSA enrichment
  3. 2026-08-16 14:56 UTCEPSS rescore
  4. 2026-08-16 14:17 UTCGHSA enrichment
  5. 2026-08-16 03:05 UTCEG score recompute
  6. 2026-08-16 03:05 UTCGHSA enrichment
  7. 2026-08-16 02:14 UTCEPSS rescore
  8. 2026-08-15 15:53 UTCGHSA enrichment
  9. 2026-08-15 04:41 UTCEG score recompute
  10. 2026-08-15 04:41 UTCGHSA enrichment
  11. 2026-08-15 01:30 UTCEPSS rescore
  12. 2026-08-14 17:28 UTCGHSA enrichment
  13. 2026-08-14 05:56 UTCEG score recompute
  14. 2026-08-14 05:56 UTCGHSA enrichment
  15. 2026-08-13 22:00 UTCEPSS rescore
  16. 2026-08-13 18:44 UTCGHSA enrichment
  17. 2026-08-13 04:51 UTCGHSA enrichment
  18. 2026-08-12 17:39 UTCEG score recompute
  19. 2026-08-12 17:39 UTCGHSA enrichment
  20. 2026-08-12 13:51 UTCEPSS rescore
  21. 2026-08-12 06:28 UTCGHSA enrichment
  22. 2026-08-11 19:15 UTCEG score recompute
  23. 2026-08-11 19:15 UTCGHSA enrichment
  24. 2026-08-11 08:04 UTCEG score recompute
  25. 2026-08-11 08:04 UTCGHSA enrichment
  26. 2026-08-11 00:00 UTCEPSS rescore
  27. 2026-08-10 20:51 UTCGHSA enrichment
  28. 2026-08-10 09:39 UTCGHSA enrichment
  29. 2026-08-09 22:27 UTCEG score recompute
  30. 2026-08-09 22:27 UTCGHSA enrichment
  31. 2026-08-09 13:46 UTCEPSS rescore
  32. 2026-08-09 11:16 UTCGHSA enrichment
  33. 2026-08-09 00:04 UTCEG score recompute
  34. 2026-08-09 00:04 UTCGHSA enrichment
  35. 2026-08-08 16:37 UTCEPSS rescore
  36. 2026-08-08 12:52 UTCGHSA enrichment
  37. 2026-08-08 01:40 UTCEG score recompute
  38. 2026-08-08 01:40 UTCGHSA enrichment
  39. 2026-08-07 14:28 UTCGHSA enrichment
  40. 2026-08-07 03:16 UTCGHSA enrichment
  41. 2026-08-06 16:04 UTCEG score recompute
  42. 2026-08-06 16:04 UTCGHSA enrichment
  43. 2026-08-06 13:47 UTCEPSS rescore
  44. 2026-08-06 04:52 UTCEG score recompute
  45. 2026-08-06 04:52 UTCGHSA enrichment
  46. 2026-08-05 19:17 UTCEPSS rescore
  47. 2026-08-05 17:40 UTCGHSA enrichment
  48. 2026-08-05 02:41 UTCGHSA enrichment
  49. 2026-08-04 15:17 UTCEG score recompute
  50. 2026-08-04 15:17 UTCGHSA enrichment
  51. 2026-08-04 15:10 UTCEPSS rescore
  52. 2026-08-04 10:39 UTCEPSS rescore
  53. 2026-08-04 01:31 UTCGHSA enrichment
  54. 2026-08-03 14:19 UTCEG score recompute
  55. 2026-08-03 14:19 UTCGHSA enrichment
  56. 2026-08-03 10:36 UTCEPSS rescore
  57. 2026-08-03 01:50 UTCGHSA enrichment
  58. 2026-08-02 14:39 UTCGHSA enrichment
  59. 2026-08-02 03:27 UTCEG score recompute
  60. 2026-08-02 03:27 UTCGHSA enrichment
  61. 2026-08-02 02:27 UTCEPSS rescore
  62. 2026-08-01 16:15 UTCGHSA enrichment
  63. 2026-08-01 05:03 UTCEG score recompute
  64. 2026-08-01 05:03 UTCGHSA enrichment
  65. 2026-08-01 04:16 UTCEPSS rescore
  66. 2026-07-31 17:51 UTCGHSA enrichment
  67. 2026-07-31 06:40 UTCGHSA enrichment
  68. 2026-07-30 19:26 UTCEG score recompute
  69. 2026-07-30 19:26 UTCGHSA enrichment
  70. 2026-07-30 16:28 UTCEPSS rescore
  71. 2026-07-30 02:49 UTCEG score recompute
  72. 2026-07-30 02:49 UTCGHSA enrichment
  73. 2026-07-30 01:30 UTCEPSS rescore
  74. 2026-07-30 01:30 UTCEPSS rescore
  75. 2026-07-29 12:59 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-56378?
CVE-2026-56378 is a high vulnerability published on June 21, 2026. ImageMagick before 7.1.2-15 (and 6.x before 6.9.13-40) contains a heap out-of-bounds read in the PCD coder's DecodeImage loop. A crafted PCD file can trigger a one-byte heap out-of-bounds read during image decoding, resulting in denial of service and potential disclosure of an adjacent heap byte.
When was CVE-2026-56378 disclosed?
CVE-2026-56378 was first published in the National Vulnerability Database on June 21, 2026, with the most recent update on June 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56378 actively exploited?
CVE-2026-56378 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 68.3% of all scored CVEs.
What is the CVSS score of CVE-2026-56378?
CVE-2026-56378 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2026-56378?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56378, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-56378

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