CVE-2026-81945

MEDIUMPre-NVD 6.66.6—
EchelonGraph scoreHIGH confidence

Score 6.6 from GitHub Security Advisory (severity: HIGH) published 2026-09-18. a secondary CVSS source baseline 6.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
6.6EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 6.6Exploit: None knownExposed: 0

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

PLANET IGS-5225-8P2T4S industrial managed switch V1 and V2 firmware versions bfore 1.2412b260707 and 2.2412b260519 contain a stack-based buffer overflow in the web server. Insufficient bounds checking on data copied into a stack buffer allows a remote administrator to cause a denial of service or potentially execute arbitrary code on the underlying operating system.

CVSS v3
6.6
EG Score
6.6(high)
EG Risk
30(Track)
EG Risk 30/100SSVC: 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
Severity66% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
45%
KEV
Not listed

Published

September 18, 2026

Last Modified

September 22, 2026

Advisory Details (2)

Auto-updated Sep 18, 2026
No patch confirmed yet.
generic

PLANET IGS-5225-8P2T4S V1/V2 Admin Stack-Based Buffer Overflow via Web Server | Advisories | VulnCheck

https://www.vulncheck.com/advisories/planet-igs-5225-8p2t4s-v1-v2-admin-stack-based-buffer-overflow-via-web-server
generic

PLANET IGS-5225-8P2T4S V1 / PLANET IGS-5225-8P2T4S V2 - Security Advisory - PLANET Technology

https://www.planet.com.tw/en/support/security-advisory/11

Vendor Advisories for CVE-2026-81945(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 26× in last 7d / 26× 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 18:59 UTCEG score recompute
  2. 2026-09-24 18:59 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-23 19:56 UTCEG score recompute
  5. 2026-09-23 19:56 UTCGHSA enrichment
  6. 2026-09-23 17:54 UTCEPSS rescore
  7. 2026-09-22 20:52 UTCEG score recompute
  8. 2026-09-22 20:52 UTCGHSA enrichment
  9. 2026-09-22 16:01 UTCEPSS rescore
  10. 2026-09-22 15:20 UTCEG score recompute
  11. 2026-09-22 15:20 UTCGHSA enrichment
  12. 2026-09-22 14:50 UTCEG score recompute
  13. 2026-09-22 14:50 UTCGHSA enrichment
  14. 2026-09-22 12:48 UTCEG score recompute
  15. 2026-09-22 12:48 UTCGHSA enrichment
  16. 2026-09-21 21:09 UTCEPSS rescore
  17. 2026-09-21 13:44 UTCEG score recompute
  18. 2026-09-21 13:44 UTCGHSA enrichment
  19. 2026-09-20 20:16 UTCEPSS rescore
  20. 2026-09-20 14:35 UTCEG score recompute
  21. 2026-09-20 14:35 UTCGHSA enrichment
  22. 2026-09-19 15:30 UTCEG score recompute
  23. 2026-09-19 15:30 UTCGHSA enrichment
  24. 2026-09-18 16:27 UTCEG score recompute
  25. 2026-09-18 15:24 UTCEG score recompute
Show 1 more
  1. 2026-09-18 15:24 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-81945?
CVE-2026-81945 is a medium vulnerability published on September 18, 2026. PLANET IGS-5225-8P2T4S industrial managed switch V1 and V2 firmware versions bfore 1.2412b260707 and 2.2412b260519 contain a stack-based buffer overflow in the web server. Insufficient bounds checking on data copied into a stack buffer allows a remote administrator to cause a denial of service or…
When was CVE-2026-81945 disclosed?
CVE-2026-81945 was first published in the National Vulnerability Database on September 18, 2026, with the most recent update on September 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-81945 actively exploited?
CVE-2026-81945 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 54.7% of all scored CVEs.
What is the CVSS score of CVE-2026-81945?
CVE-2026-81945 has a CVSS v3 base score of 6.6 (NVD).
How do I remediate CVE-2026-81945?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-81945, 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-2026-81945

Explore →

Is Your Infrastructure Affected by CVE-2026-81945?

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

Book a Demo →Browse All CVEs