CVE-2026-87020

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-09-11. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.1Exploit: None knownExposed: 0

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

An integer overflow in a specified pitch and buffer-size computation leads to a heap out-of-bounds write when Orthanc DICOM Server decodes an attacker-supplied PNG.

CVSS v3
8.1
EG Score
8.1(high)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
45%
KEV
Not listed

Published

September 11, 2026

Last Modified

September 18, 2026

Advisory Details (3)

Auto-updated Sep 11, 2026
Patch available. Sources: cisa.
generic

CSAF/csaf_files/OT/white/2026/icsma-26-253-02.json at develop · cisagov/CSAF · GitHub

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-253-02.json
cisa Patch Available

Orthanc DICOM Server | CISA

https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-253-02
generic

Orthanc downloads

https://orthanc.uclouvain.be/downloads/index.html

Vendor Advisories for CVE-2026-87020(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 27× in last 7d / 39× 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. 2026-09-21 00:16 UTCEG score recompute
  2. 2026-09-21 00:16 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 11:09 UTCGHSA enrichment
  5. 2026-09-19 22:03 UTCEG score recompute
  6. 2026-09-19 22:03 UTCGHSA enrichment
  7. 2026-09-19 08:55 UTCGHSA enrichment
  8. 2026-09-18 19:49 UTCEG score recompute
  9. 2026-09-18 19:49 UTCGHSA enrichment
  10. 2026-09-18 19:28 UTCEPSS rescore
  11. 2026-09-18 18:17 UTCGHSA enrichment
  12. 2026-09-18 05:11 UTCEG score recompute
  13. 2026-09-18 05:11 UTCGHSA enrichment
  14. 2026-09-17 19:32 UTCEPSS rescore
  15. 2026-09-17 16:05 UTCGHSA enrichment
  16. 2026-09-17 02:58 UTCEG score recompute
  17. 2026-09-17 02:58 UTCGHSA enrichment
  18. 2026-09-16 14:09 UTCEPSS rescore
  19. 2026-09-16 13:52 UTCEG score recompute
  20. 2026-09-16 13:52 UTCGHSA enrichment
  21. 2026-09-16 05:15 UTCEPSS rescore
  22. 2026-09-16 00:40 UTCGHSA enrichment
  23. 2026-09-15 11:16 UTCEG score recompute
  24. 2026-09-15 11:16 UTCGHSA enrichment
  25. 2026-09-15 03:12 UTCEPSS rescore
Show 14 more
  1. 2026-09-15 03:12 UTCEPSS rescore
  2. 2026-09-14 22:09 UTCGHSA enrichment
  3. 2026-09-14 09:02 UTCGHSA enrichment
  4. 2026-09-13 19:56 UTCEG score recompute
  5. 2026-09-13 19:56 UTCGHSA enrichment
  6. 2026-09-13 06:49 UTCGHSA enrichment
  7. 2026-09-12 17:41 UTCEG score recompute
  8. 2026-09-12 17:41 UTCGHSA enrichment
  9. 2026-09-12 04:35 UTCEG score recompute
  10. 2026-09-12 04:35 UTCGHSA enrichment
  11. 2026-09-11 15:28 UTCEG score recompute
  12. 2026-09-11 15:04 UTCEG score recompute
  13. 2026-09-11 14:20 UTCEG score recompute
  14. 2026-09-11 14:19 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-87020?
CVE-2026-87020 is a high vulnerability published on September 11, 2026. An integer overflow in a specified pitch and buffer-size computation leads to a heap out-of-bounds write when Orthanc DICOM Server decodes an attacker-supplied PNG.
When was CVE-2026-87020 disclosed?
CVE-2026-87020 was first published in the National Vulnerability Database on September 11, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-87020 actively exploited?
CVE-2026-87020 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 54.6% of all scored CVEs.
What is the CVSS score of CVE-2026-87020?
CVE-2026-87020 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-87020?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-87020, 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

Explore the affected products and dependency analysis for CVE-2026-87020

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