CVE-2026-4541

LOWNVD 2.52.5—
EchelonGraph scoreMEDIUM confidence

Score 2.5 from GitHub Security Advisory (severity: LOW) published 2026-03-22. NVD baseline CVSS 2.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
2.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 2.5Exploit: NoneExposed: 0

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

A flaw has been found in janmojzis tinyssh up to 20250501. Impacted is an unknown function of the file tinyssh/crypto_sign_ed25519_tinyssh.c of the component Ed25519 Signature Handler. This manipulation causes improper verification of cryptographic signature. The attack is restricted to local execution. The attack's complexity is rated as high. The exploitability is considered difficult. The exploit has been published and may be used. Upgrading to version 20260301 is recommended to address this issue. Patch name: 9c87269607e0d7d20174df742accc49c042cff17. Upgrading the affected component is recommended.

CVSS v3
2.5
EG Score
2.5(medium)
EG Risk
27(Track)
EG Risk 27/100SSVC: 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
Severity25% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
0.3%
KEV
Not listed

Published

March 22, 2026

Last Modified

April 29, 2026

References (9)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 23× 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. 2026-07-24 14:18 UTCEPSS rescore
  2. 2026-07-23 14:18 UTCEPSS rescore
  3. 2026-07-23 03:16 UTCEG score recompute
  4. 2026-07-22 14:08 UTCEPSS rescore
  5. 2026-07-19 02:29 UTCEPSS rescore
  6. 2026-07-16 17:03 UTCEPSS rescore
  7. 2026-07-16 07:23 UTCOSV refresh
  8. 2026-07-13 22:31 UTCEPSS rescore
  9. 2026-07-13 06:13 UTCEPSS rescore
  10. 2026-07-13 06:13 UTCEPSS rescore
  11. 2026-07-11 08:27 UTCEPSS rescore
  12. 2026-07-09 19:10 UTCEPSS rescore
  13. 2026-07-08 15:16 UTCEPSS rescore
  14. 2026-07-07 13:46 UTCEPSS rescore
  15. 2026-07-04 06:31 UTCEPSS rescore
  16. 2026-07-01 15:07 UTCEPSS rescore
  17. 2026-06-30 23:22 UTCEPSS rescore
  18. 2026-06-28 14:07 UTCEPSS rescore
  19. 2026-06-28 06:52 UTCOSV refresh
  20. 2026-06-28 04:56 UTCEPSS rescore
  21. 2026-06-28 04:56 UTCEPSS rescore
  22. 2026-06-27 03:08 UTCEPSS rescore
  23. 2026-06-25 13:49 UTCEPSS rescore
  24. 2026-06-23 21:33 UTCEPSS rescore
  25. 2026-06-23 21:33 UTCEPSS rescore
Show 31 more
  1. 2026-06-19 19:26 UTCEPSS rescore
  2. 2026-06-19 19:26 UTCEPSS rescore
  3. 2026-06-18 17:52 UTCEPSS rescore
  4. 2026-06-18 17:52 UTCEPSS rescore
  5. 2026-06-17 17:53 UTCEPSS rescore
  6. 2026-06-15 17:49 UTCEPSS rescore
  7. 2026-06-15 17:49 UTCEPSS rescore
  8. 2026-06-12 23:12 UTCEPSS rescore
  9. 2026-06-12 23:12 UTCEPSS rescore
  10. 2026-06-10 17:34 UTCGHSA enrichment
  11. 2026-06-10 13:22 UTCEPSS rescore
  12. 2026-06-07 15:25 UTCEPSS rescore
  13. 2026-06-07 15:25 UTCEPSS rescore
  14. 2026-06-07 13:39 UTCGHSA enrichment
  15. 2026-06-05 06:10 UTCEPSS rescore
  16. 2026-06-05 06:10 UTCEPSS rescore
  17. 2026-06-01 13:52 UTCEPSS rescore
  18. 2026-06-01 13:52 UTCEPSS rescore
  19. 2026-06-01 07:43 UTCOSV refresh
  20. 2026-05-31 22:30 UTCEPSS rescore
  21. 2026-05-31 22:30 UTCEPSS rescore
  22. 2026-05-31 00:16 UTCEPSS rescore
  23. 2026-05-31 00:16 UTCEPSS rescore
  24. 2026-05-29 13:44 UTCEPSS rescore
  25. 2026-05-29 13:44 UTCEPSS rescore
  26. 2026-05-27 13:40 UTCEPSS rescore
  27. 2026-05-27 13:40 UTCEPSS rescore
  28. 2026-05-26 13:44 UTCEPSS rescore
  29. 2026-05-26 07:18 UTCEPSS rescore
  30. 2026-05-20 20:43 UTCEG score recompute
  31. 2026-05-20 20:43 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-4541?
CVE-2026-4541 is a low vulnerability published on March 22, 2026. A flaw has been found in janmojzis tinyssh up to 20250501. Impacted is an unknown function of the file tinyssh/cryptosigned25519_tinyssh.c of the component Ed25519 Signature Handler. This manipulation causes improper verification of cryptographic signature. The attack is restricted to local…
When was CVE-2026-4541 disclosed?
CVE-2026-4541 was first published in the National Vulnerability Database on March 22, 2026, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-4541 actively exploited?
CVE-2026-4541 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-4541?
CVE-2026-4541 has a CVSS v3 base score of 2.5 (NVD).
How do I remediate CVE-2026-4541?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-4541, 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.

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