CVE-2026-81944

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-18. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: 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 before 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 authenticated attacker to cause a denial of service or potentially execute arbitrary code on the underlying operating system.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
34(Track)
EG Risk 34/100SSVC: 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
Severity75% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
51%
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 Stack-Based Buffer Overflow via Web Server | Advisories | VulnCheck

https://www.vulncheck.com/advisories/planet-igs-5225-8p2t4s-v1-v2-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-2026-81944(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 31× in last 7d / 31× 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. 2026-09-25 09:38 UTCGHSA enrichment
  2. 2026-09-24 21:29 UTCEG score recompute
  3. 2026-09-24 21:29 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-24 09:19 UTCGHSA enrichment
  6. 2026-09-23 21:10 UTCEG score recompute
  7. 2026-09-23 21:10 UTCGHSA enrichment
  8. 2026-09-23 17:54 UTCEPSS rescore
  9. 2026-09-23 09:01 UTCGHSA enrichment
  10. 2026-09-22 20:52 UTCGHSA enrichment
  11. 2026-09-22 19:49 UTCEG score recompute
  12. 2026-09-22 19:49 UTCGHSA enrichment
  13. 2026-09-22 16:01 UTCEPSS rescore
  14. 2026-09-22 07:40 UTCEG score recompute
  15. 2026-09-22 07:40 UTCGHSA enrichment
  16. 2026-09-21 21:09 UTCEPSS rescore
  17. 2026-09-21 19:31 UTCGHSA enrichment
  18. 2026-09-21 07:19 UTCEG score recompute
  19. 2026-09-21 07:19 UTCGHSA enrichment
  20. 2026-09-20 20:16 UTCEPSS rescore
  21. 2026-09-20 19:07 UTCGHSA enrichment
  22. 2026-09-20 06:57 UTCGHSA enrichment
  23. 2026-09-19 18:47 UTCEG score recompute
  24. 2026-09-19 18:47 UTCGHSA enrichment
  25. 2026-09-19 06:38 UTCEG score recompute
Show 6 more
  1. 2026-09-19 06:38 UTCGHSA enrichment
  2. 2026-09-18 18:29 UTCEG score recompute
  3. 2026-09-18 18:07 UTCEG score recompute
  4. 2026-09-18 16:27 UTCEG score recompute
  5. 2026-09-18 15:24 UTCEG score recompute
  6. 2026-09-18 15:24 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-81944?
CVE-2026-81944 is a high vulnerability published on September 18, 2026. PLANET IGS-5225-8P2T4S industrial managed switch V1 and V2 firmware versions before 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 authenticated attacker to cause a denial of…
When was CVE-2026-81944 disclosed?
CVE-2026-81944 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-2026-81944 actively exploited?
CVE-2026-81944 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 48.5% of all scored CVEs.
What is the CVSS score of CVE-2026-81944?
CVE-2026-81944 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-81944?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-81944, 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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