CVE-2026-56367

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 65% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 9.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

ImageMagick before 7.1.2-15 and 6.9.x before 6.9.13-40 contains an integer overflow in the PSB (PSD v2) RLE decoding path (ReadPSDChannelRLE in coders/psd.c) that causes a heap out-of-bounds read on 32-bit builds. Processing a crafted PSB file can lead to information disclosure or a crash.

CVSS v3
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
46
EG Risk 46/100

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
Severity91% × 45%
Exploitation0% × 40%
Automatability30% × 15%
EPSS PROB
0.2%
EPSS %ILE
13th
KEV
Not listed

Published

June 21, 2026

Last Modified

June 26, 2026

Advisory Details (2)

Auto-updated Sep 16, 2026
Patch available. Sources: github.
generic

ImageMagick - Heap Out-of-Bounds Read in PSB RLE Decoding | Advisories | VulnCheck

https://www.vulncheck.com/advisories/imagemagick-heap-out-of-bounds-read-in-psb-rle-decoding
githubMentions a patch (unverified)

PSB RLE sizes OOB read on 32-bit · Advisory · ImageMagick/ImageMagick · GitHub

https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-273h-m46v-96q4

Vendor Advisories for CVE-2026-56367(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 rangeFix by version rangeDependents
Magick.NET-Q16-AnyCPU10.0.0 ... 9.1.2 (209 versions)
  • every version up to 14.10.3: fixed in 14.10.3
—
Magick.NET-Q16-arm6410.0.0 ... 9.1.2 (54 versions)
  • every version up to 14.10.3: fixed in 14.10.3
—
Magick.NET-Q16-HDRI-AnyCPU10.0.0 ... 9.1.2 (206 versions)
  • every version up to 14.10.3: fixed in 14.10.3
—
Magick.NET-Q16-HDRI-arm6410.0.0 ... 9.1.2 (54 versions)
  • every version up to 14.10.3: fixed in 14.10.3
—
Magick.NET-Q16-HDRI-OpenMP-arm6410.0.0 ... 9.1.2 (54 versions)
  • every version up to 14.10.3: fixed in 14.10.3
—
Magick.NET-Q16-HDRI-OpenMP-x6410.0.0 ... 9.1.2 (106 versions)
  • every version up to 14.10.3: fixed in 14.10.3
—
Magick.NET-Q16-HDRI-x6410.0.0 ... 9.1.2 (206 versions)
  • every version up to 14.10.3: fixed in 14.10.3
—
Magick.NET-Q16-HDRI-x8610.0.0 ... 9.1.2 (206 versions)
  • every version up to 14.10.3: fixed in 14.10.3
—
Magick.NET-Q16-OpenMP-arm6410.0.0 ... 9.1.2 (54 versions)
  • every version up to 14.10.3: fixed in 14.10.3
—
Magick.NET-Q16-OpenMP-x6410.0.0 ... 9.1.2 (106 versions)
  • every version up to 14.10.3: fixed in 14.10.3
—
Magick.NET-Q16-OpenMP-x86—
  • every version up to 14.10.3: fixed in 14.10.3
—
Magick.NET-Q16-x6410.0.0 ... 9.1.2 (225 versions)
  • every version up to 14.10.3: fixed in 14.10.3
—
Magick.NET-Q16-x8610.0.0 ... 9.1.2 (225 versions)
  • every version up to 14.10.3: fixed in 14.10.3
—
Magick.NET-Q8-AnyCPU10.0.0 ... 9.1.2 (209 versions)
  • every version up to 14.10.3: fixed in 14.10.3
—
Magick.NET-Q8-arm6410.0.0 ... 9.1.2 (54 versions)
  • every version up to 14.10.3: fixed in 14.10.3
—
Magick.NET-Q8-OpenMP-arm6410.0.0 ... 9.1.2 (54 versions)
  • every version up to 14.10.3: fixed in 14.10.3
—
Magick.NET-Q8-OpenMP-x6410.0.0 ... 9.1.2 (106 versions)
  • every version up to 14.10.3: fixed in 14.10.3
—
Magick.NET-Q8-x6410.0.0 ... 9.1.2 (225 versions)
  • every version up to 14.10.3: fixed in 14.10.3
—
Magick.NET-Q8-x8610.0.0 ... 9.1.2 (225 versions)
  • every version up to 14.10.3: fixed in 14.10.3
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
imagemagick8:6.9.11.60+dfsg-1.3 ... 8:6.9.11.60+dfsg-1.3+deb11u9 (15 versions)
  • every version up to 8:6.9.11.60+dfsg-1.3+deb11u15: fixed in 8:6.9.11.60+dfsg-1.3+deb11u15
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
imagemagick8:6.9.11.60+dfsg-1.6 ... 8:6.9.11.60+dfsg-1.6+deb12u9 (12 versions)
  • every version up to 8:6.9.11.60+dfsg-1.6+deb12u12: fixed in 8:6.9.11.60+dfsg-1.6+deb12u12
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
imagemagick8:7.1.1.43+dfsg1-1 ... 8:7.1.1.43+dfsg1-1+deb13u9 (11 versions)
  • every version up to 8:7.1.1.43+dfsg1-1+deb13u11: fixed in 8:7.1.1.43+dfsg1-1+deb13u11
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
imagemagick8:7.1.1.43+dfsg1-1 ... 8:7.1.2.8+dfsg1-1 (10 versions)
  • every version up to 8:7.1.2.15+dfsg1-1: fixed in 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 6× in last 7d / 30× 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 301 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-56367?
CVE-2026-56367 is a critical vulnerability published on June 21, 2026. ImageMagick before 7.1.2-15 and 6.9.x before 6.9.13-40 contains an integer overflow in the PSB (PSD v2) RLE decoding path (ReadPSDChannelRLE in coders/psd.c) that causes a heap out-of-bounds read on 32-bit builds. Processing a crafted PSB file can lead to information disclosure or a crash.
When was CVE-2026-56367 disclosed?
CVE-2026-56367 was first published 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-2026-56367 actively exploited?
CVE-2026-56367 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (13th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-56367?
CVE-2026-56367 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-56367?
A fix for CVE-2026-56367 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-56367 are linked in the Vendor Advisories panel on this page.

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