CVE-2026-86423

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.5 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 96% 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
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

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

ImageMagick before 7.1.2-30 and 6.9.x before 6.9.13-55 contains a heap-use-after-free vulnerability in the GetList method of PerlMagick. A crafted call to the GetList method can trigger the use-after-free, resulting in a crash (denial of service).

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
25(Track)
EG Risk 25/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

September 7, 2026

Last Modified

September 9, 2026

Advisory Details (2)

Auto-updated Sep 9, 2026
Patch available. Sources: github.
generic

ImageMagick before 7.1.2-30 Heap-use-after-free via GetList | Advisories | VulnCheck

https://www.vulncheck.com/advisories/imagemagick-before-7.1.2-30-heap-use-after-free-via-getlist
github Patch Available

Heap-use-after-free in the GetList method of PerlMagick could result in a crash · Advisory · ImageMagick/ImageMagick · GitHub

https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-5m9j-96ff-j6qc

Vendor Advisories for CVE-2026-86423(1)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
imagemagick8:6.9.11.60+dfsg-1.6 ... 8:7.1.2.8+dfsg1-1 (54 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
imagemagick8:7.1.1.43+dfsg1-1 ... 8:7.1.2.8+dfsg1-1 (35 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
imagemagick8:7.1.1.43+dfsg1-1 ... 8:7.1.2.8+dfsg1-1 (23 versions)——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 15× in last 7d / 52× 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.

  1. 2026-09-24 18:56 UTCEG score recompute
  2. 2026-09-24 18:56 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-23 20:19 UTCEG score recompute
  5. 2026-09-23 20:19 UTCGHSA enrichment
  6. 2026-09-23 17:54 UTCEPSS rescore
  7. 2026-09-22 21:42 UTCGHSA enrichment
  8. 2026-09-21 23:05 UTCEG score recompute
  9. 2026-09-21 23:04 UTCGHSA enrichment
  10. 2026-09-21 21:09 UTCEPSS rescore
  11. 2026-09-21 00:27 UTCGHSA enrichment
  12. 2026-09-20 01:49 UTCGHSA enrichment
  13. 2026-09-19 03:12 UTCEG score recompute
  14. 2026-09-19 03:12 UTCGHSA enrichment
  15. 2026-09-18 19:28 UTCEPSS rescore
  16. 2026-09-18 04:35 UTCEG score recompute
  17. 2026-09-18 04:35 UTCGHSA enrichment
  18. 2026-09-17 19:32 UTCEPSS rescore
  19. 2026-09-17 05:57 UTCEG score recompute
  20. 2026-09-17 05:56 UTCGHSA enrichment
  21. 2026-09-16 14:09 UTCEPSS rescore
  22. 2026-09-16 07:16 UTCEG score recompute
  23. 2026-09-16 07:16 UTCGHSA enrichment
  24. 2026-09-16 05:15 UTCEPSS rescore
  25. 2026-09-15 08:38 UTCEG score recompute
Show 27 more
  1. 2026-09-15 08:38 UTCGHSA enrichment
  2. 2026-09-15 03:12 UTCEPSS rescore
  3. 2026-09-15 03:12 UTCEPSS rescore
  4. 2026-09-14 10:00 UTCEG score recompute
  5. 2026-09-14 10:00 UTCGHSA enrichment
  6. 2026-09-13 11:23 UTCEG score recompute
  7. 2026-09-13 11:23 UTCGHSA enrichment
  8. 2026-09-12 12:46 UTCEG score recompute
  9. 2026-09-12 12:46 UTCGHSA enrichment
  10. 2026-09-11 14:53 UTCEPSS rescore
  11. 2026-09-11 14:53 UTCEPSS rescore
  12. 2026-09-11 14:08 UTCEG score recompute
  13. 2026-09-11 14:08 UTCGHSA enrichment
  14. 2026-09-10 15:31 UTCEG score recompute
  15. 2026-09-10 15:31 UTCGHSA enrichment
  16. 2026-09-09 16:54 UTCEG score recompute▲ 2.20
  17. 2026-09-09 16:54 UTCGHSA enrichment
  18. 2026-09-09 16:51 UTCNVD updateCVSS v3 → 5.5 · severity → MEDIUM
  19. 2026-09-08 22:01 UTCEPSS rescore
  20. 2026-09-08 20:13 UTCGHSA enrichment
  21. 2026-09-08 13:49 UTCEG score recompute
  22. 2026-09-08 13:48 UTCGHSA enrichment
  23. 2026-09-08 13:03 UTCEG score recompute
  24. 2026-09-08 13:03 UTCGHSA enrichment
  25. 2026-09-07 13:31 UTCEG score recompute
  26. 2026-09-07 12:58 UTCEG score recompute
  27. 2026-09-07 12:56 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-86423?
CVE-2026-86423 is a medium vulnerability published on September 7, 2026. ImageMagick before 7.1.2-30 and 6.9.x before 6.9.13-55 contains a heap-use-after-free vulnerability in the GetList method of PerlMagick. A crafted call to the GetList method can trigger the use-after-free, resulting in a crash (denial of service).
When was CVE-2026-86423 disclosed?
CVE-2026-86423 was first published in the National Vulnerability Database on September 7, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-86423 actively exploited?
CVE-2026-86423 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 96.4% of all scored CVEs.
What is the CVSS score of CVE-2026-86423?
CVE-2026-86423 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-86423?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-86423, 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-2026-86423

Explore →

Is Your Infrastructure Affected by CVE-2026-86423?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs