CVE-2026-23876

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.6%, top 55% 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, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.8Exploit: NoneExposed: 0

A fix is available — apply it.

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-13 and 6.9.13-38, a heap buffer overflow vulnerability in the XBM image decoder (ReadXBMImage) allows an attacker to write controlled data past the allocated heap buffer when processing a maliciously crafted image file. Any operation that reads or identifies an image can trigger the overflow, making it exploitable via common image upload and processing pipelines. Versions 7.1.2-13 and 6.9.13-38 fix the issue.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity98% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
45.5%
KEV
Not listed

Published

January 20, 2026

Last Modified

July 15, 2026

Advisory Details (6)

Auto-updated Jul 16, 2026
Patch available. Sources: github_commit, github, redhat.
redhat Patch Available

Affected: Red Hat Enterprise Linux 6",

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23876.json
redhat Patch Available

2431038 – (CVE-2026-23876) CVE-2026-23876 ImageMagick: ImageMagick: Arbitrary code execution via a crafted XBM image file

Affected: Red Hat Enterprise Linux 7 Extended Lifecycle Support

https://bugzilla.redhat.com/show_bug.cgi?id=2431038
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-23876
redhat Patch Available

Affected: Red Hat Enterprise Linux 7 Extended Lifecycle Support.

https://access.redhat.com/errata/RHSA-2026:3058
github Patch Available

Heap buffer overflow with attacker-controlled data in XBM parser · Advisory · ImageMagick/ImageMagick · GitHub

https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-r49w-jqq3-3gx8
github_commit

commit 2fae24192b78 (ImageMagick/ImageMagick)

Fix landed in ImageMagick/ImageMagick commit 2fae24192b78 — awaiting tagged release

https://github.com/ImageMagick/ImageMagick/commit/2fae24192b78fdfdd27d766fd21d90aeac6ea8b8

Vendor Advisories for CVE-2026-23876(1)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuperlmagick (8:6.7.7.10-6ubuntu3.13+esm18) @ trusty2026-05-29ubuntu
redhatImageMagick-0:6.9.10.68-10.el7_92026-02-23redhat

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(3)

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

Additional Vendor Advisories

(1)

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 13× in last 7d / 54× 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 104 total refreshes for this CVE.

  1. 2026-07-23 03:07 UTCEG score recompute▲ 1.70
  2. 2026-07-22 14:08 UTCEPSS rescore
  3. 2026-07-21 15:24 UTCEPSS rescore
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  5. 2026-07-20 17:08 UTCEPSS rescore
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  12. 2026-07-16 17:03 UTCEPSS rescore
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  14. 2026-07-15 16:57 UTCEPSS rescore
  15. 2026-07-15 16:57 UTCEPSS rescore
  16. 2026-07-15 02:21 UTCNVD updateCVSS v3 → 9.8 · severity → CRITICAL
  17. 2026-07-15 02:00 UTCEPSS rescore
  18. 2026-07-15 02:00 UTCEPSS rescore
  19. 2026-07-15 01:21 UTCMITRE cvelistV5CVSS v3 → 8.1 · severity → HIGH
  20. 2026-07-13 22:30 UTCEPSS rescore
  21. 2026-07-13 06:13 UTCEPSS rescore
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  1. 2026-07-09 19:10 UTCEPSS rescore
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  4. 2026-07-07 13:46 UTCEPSS rescore
  5. 2026-07-06 16:27 UTCEPSS rescore
  6. 2026-07-06 16:27 UTCEPSS rescore
  7. 2026-07-06 05:02 UTCOSV refresh
  8. 2026-07-06 02:23 UTCEPSS rescore
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  15. 2026-06-30 23:22 UTCEPSS rescore
  16. 2026-06-30 23:22 UTCEPSS rescore
  17. 2026-06-30 04:31 UTCNVD updateCVSS v3 → 9.8 · severity → CRITICAL
  18. 2026-06-29 14:06 UTCEPSS rescore
  19. 2026-06-28 14:07 UTCEPSS rescore
  20. 2026-06-28 14:07 UTCEPSS rescore
  21. 2026-06-28 04:56 UTCEPSS rescore
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  23. 2026-06-27 03:08 UTCEPSS rescore
  24. 2026-06-25 13:49 UTCEPSS rescore
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  26. 2026-06-24 14:05 UTCEPSS rescore
  27. 2026-06-24 14:05 UTCEPSS rescore
  28. 2026-06-23 21:33 UTCEPSS rescore
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  30. 2026-06-22 14:25 UTCEPSS rescore
  31. 2026-06-22 14:25 UTCEPSS rescore
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  36. 2026-06-19 19:25 UTCEPSS rescore
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  38. 2026-06-18 17:52 UTCEPSS rescore
  39. 2026-06-17 17:53 UTCEPSS rescore
  40. 2026-06-17 17:53 UTCEPSS rescore
  41. 2026-06-17 16:35 UTCOSV refresh
  42. 2026-06-16 17:52 UTCEPSS rescore
  43. 2026-06-15 17:48 UTCEPSS rescore
  44. 2026-06-14 23:18 UTCEPSS rescore
  45. 2026-06-13 23:00 UTCEPSS rescore
  46. 2026-06-12 23:12 UTCEPSS rescore
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  48. 2026-06-11 14:00 UTCEPSS rescore
  49. 2026-06-10 22:18 UTCEPSS rescore
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  54. 2026-06-07 15:25 UTCEPSS rescore
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  57. 2026-06-06 13:47 UTCEPSS rescore
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  60. 2026-06-05 22:47 UTCEPSS rescore
  61. 2026-06-05 06:10 UTCEPSS rescore
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  63. 2026-06-04 13:12 UTCEPSS rescore
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  66. 2026-06-02 20:13 UTCEPSS rescore
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  68. 2026-06-01 13:51 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2026-23876?
CVE-2026-23876 is a critical vulnerability published on January 20, 2026. ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-13 and 6.9.13-38, a heap buffer overflow vulnerability in the XBM image decoder (ReadXBMImage) allows an attacker to write controlled data past the allocated heap buffer when…
When was CVE-2026-23876 disclosed?
CVE-2026-23876 was first published in the National Vulnerability Database on January 20, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-23876 actively exploited?
CVE-2026-23876 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 45.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-23876?
CVE-2026-23876 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-23876?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-23876, 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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