CVE-2026-59260

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-12. the CNA's CVSS baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 4 sources updated this weekElevated
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 8.8Exploit: NoneExposed: 0

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

OpenWrt luci-app-samba4 read ACL grants file.exec permission on /usr/sbin/smbd, allowing authenticated delegated users to execute the Samba daemon with caller-controlled command-line arguments. Attackers can pass arbitrary Samba global options such as message command to a root smbd process, triggering command execution when SMB protocol messages are processed.

CVSS v3
8.8
EG Score
8.8(high)
EPSS
49.5%
KEV
Not listed

Published

July 12, 2026

Last Modified

July 14, 2026

Advisory Details (2)

Auto-updated Jul 12, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

OpenWrt luci-app-samba4 read ACL remote code execution via smbd | Advisories | VulnCheck

https://www.vulncheck.com/advisories/openwrt-luci-app-samba4-read-acl-remote-code-execution-via-smbd
github Patch Available🟡 PoC Available

luci-app-samba4 read ACL allows authenticated root command execution via smbd file.exec · Advisory · openwrt/luci · GitHub

https://github.com/openwrt/luci/security/advisories/GHSA-vx64-mmp7-h36c

Vendor Advisories for CVE-2026-59260(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 21× in last 7d / 21× 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. 2026-07-15 21:28 UTCEG score recompute
  2. 2026-07-15 21:28 UTCGHSA enrichment
  3. 2026-07-15 16:57 UTCEPSS rescore
  4. 2026-07-15 16:57 UTCEPSS rescore
  5. 2026-07-15 09:52 UTCEG score recompute
  6. 2026-07-15 09:52 UTCGHSA enrichment
  7. 2026-07-15 02:00 UTCEPSS rescore
  8. 2026-07-15 02:00 UTCEPSS rescore
  9. 2026-07-14 22:16 UTCEG score recompute
  10. 2026-07-14 22:16 UTCGHSA enrichment
  11. 2026-07-14 10:40 UTCEG score recompute
  12. 2026-07-14 10:40 UTCGHSA enrichment
  13. 2026-07-13 22:59 UTCEG score recompute
  14. 2026-07-13 22:59 UTCGHSA enrichment
  15. 2026-07-13 22:31 UTCEPSS rescore
  16. 2026-07-13 11:23 UTCEG score recompute
  17. 2026-07-13 11:23 UTCGHSA enrichment
  18. 2026-07-12 23:48 UTCEG score recompute
  19. 2026-07-12 23:48 UTCGHSA enrichment
  20. 2026-07-12 12:13 UTCEG score recompute
  21. 2026-07-12 12:12 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-59260?
CVE-2026-59260 is a high vulnerability published on July 12, 2026. OpenWrt luci-app-samba4 read ACL grants file.exec permission on /usr/sbin/smbd, allowing authenticated delegated users to execute the Samba daemon with caller-controlled command-line arguments. Attackers can pass arbitrary Samba global options such as message command to a root smbd process,…
When was CVE-2026-59260 disclosed?
CVE-2026-59260 was first published in the National Vulnerability Database on July 12, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-59260 actively exploited?
CVE-2026-59260 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 49.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-59260?
CVE-2026-59260 has a CVSS v4.0 base score of 8.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-59260?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59260, 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-2026-59260

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