CVE-2026-59997

MEDIUMNVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.4 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 93% 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 — 4 sources updated this week
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.4Exploit: None knownExposed: 0

A fix is available — apply it.

internal-sftp in sshd in OpenSSH before 10.4 recognizes only the first 9 command-line arguments, which can be important if a later command-line argument would have helped to ensure the intended security properties of an SFTP connection.

CVSS v3
5.4
EG Score
5.4(medium)
EG Risk
24(Track)
EG Risk 24/100SSVC: 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
Severity54% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
7%
KEV
Not listed

Published

July 8, 2026

Last Modified

July 9, 2026

Advisory Details (3)

Auto-updated Jul 8, 2026
No patch confirmed yet.
generic

oss-security - Announce: OpenSSH 10.4 released

https://www.openwall.com/lists/oss-security/2026/07/06/5
generic

OpenSSH: Release Notes

https://www.openssh.org/releasenotes.html#10.4p1
generic

'Announce: OpenSSH 10.4 released' - MARC

https://marc.info/?l=openssh-unix-dev&m=178333966933090&w=2

Vendor Advisories for CVE-2026-59997(3)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntussh-askpass-gnome (1:10.2p1-2ubuntu3.4) @ resolute2026-07-27ubuntu
redhatopenssh-main-10.4p1-1.hum12026-07-09redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

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

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 21× in last 7d / 57× 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. 2026-07-27 15:42 UTCEG score recompute
  2. 2026-07-27 15:42 UTCVendor advisory
  3. 2026-07-27 15:42 UTCGHSA enrichment
  4. 2026-07-27 14:14 UTCEPSS rescore
  5. 2026-07-26 14:54 UTCEPSS rescore
  6. 2026-07-26 14:54 UTCEPSS rescore
  7. 2026-07-26 12:32 UTCEG score recompute
  8. 2026-07-26 12:32 UTCVendor advisory
  9. 2026-07-26 12:32 UTCGHSA enrichment
  10. 2026-07-25 14:18 UTCEPSS rescore
  11. 2026-07-25 14:18 UTCEPSS rescore
  12. 2026-07-24 14:18 UTCEPSS rescore
  13. 2026-07-24 14:18 UTCEPSS rescore
  14. 2026-07-23 14:18 UTCEPSS rescore
  15. 2026-07-23 14:18 UTCEPSS rescore
  16. 2026-07-23 03:21 UTCEG score recompute▲ 1.20
  17. 2026-07-22 14:08 UTCEPSS rescore
  18. 2026-07-22 14:08 UTCEPSS rescore
  19. 2026-07-21 15:25 UTCEPSS rescore
  20. 2026-07-21 15:25 UTCEPSS rescore
  21. 2026-07-20 17:08 UTCEPSS rescore
  22. 2026-07-19 14:31 UTCEPSS rescore
  23. 2026-07-19 02:29 UTCEPSS rescore
  24. 2026-07-18 10:04 UTCEPSS rescore
  25. 2026-07-16 17:03 UTCEPSS rescore
Show 32 more
  1. 2026-07-16 09:46 UTCVendor advisory
  2. 2026-07-16 09:46 UTCGHSA enrichment
  3. 2026-07-15 16:57 UTCEPSS rescore
  4. 2026-07-15 16:57 UTCEPSS rescore
  5. 2026-07-15 08:41 UTCVendor advisory
  6. 2026-07-15 08:41 UTCGHSA enrichment
  7. 2026-07-15 02:00 UTCEPSS rescore
  8. 2026-07-15 02:00 UTCEPSS rescore
  9. 2026-07-14 07:31 UTCVendor advisory
  10. 2026-07-14 07:31 UTCGHSA enrichment
  11. 2026-07-13 22:31 UTCEPSS rescore
  12. 2026-07-13 06:25 UTCVendor advisory
  13. 2026-07-13 06:25 UTCGHSA enrichment
  14. 2026-07-13 06:13 UTCEPSS rescore
  15. 2026-07-13 06:13 UTCEPSS rescore
  16. 2026-07-12 05:46 UTCEPSS rescore
  17. 2026-07-12 05:17 UTCVendor advisory
  18. 2026-07-12 05:17 UTCGHSA enrichment
  19. 2026-07-11 08:27 UTCEPSS rescore
  20. 2026-07-11 08:27 UTCEPSS rescore
  21. 2026-07-11 04:12 UTCVendor advisory
  22. 2026-07-11 04:12 UTCGHSA enrichment
  23. 2026-07-10 03:06 UTCVendor advisory
  24. 2026-07-10 03:06 UTCGHSA enrichment
  25. 2026-07-09 19:10 UTCEPSS rescore
  26. 2026-07-09 19:10 UTCEPSS rescore
  27. 2026-07-09 17:53 UTCNVD updateCVSS v3 → 5.4
  28. 2026-07-09 02:00 UTCGHSA enrichment
  29. 2026-07-08 15:16 UTCEPSS rescore
  30. 2026-07-08 15:16 UTCEPSS rescore
  31. 2026-07-08 00:55 UTCEG score recompute
  32. 2026-07-08 00:55 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-59997?
CVE-2026-59997 is a medium vulnerability published on July 8, 2026. internal-sftp in sshd in OpenSSH before 10.4 recognizes only the first 9 command-line arguments, which can be important if a later command-line argument would have helped to ensure the intended security properties of an SFTP connection.
When was CVE-2026-59997 disclosed?
CVE-2026-59997 was first published in the National Vulnerability Database on July 8, 2026, with the most recent update on July 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-59997 actively exploited?
CVE-2026-59997 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 92.8% of all scored CVEs.
What is the CVSS score of CVE-2026-59997?
CVE-2026-59997 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2026-59997?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59997, 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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