OpenWrt luci-app-samba4 read ACL remote code execution via smbd (CVE-2026-59260) | HOL Guard CVE

High · CVSS 8.7CVE-2026-59260

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

Answer in brief

CVE-2026-59260 records a High severity (CVSS 8.7) vulnerability in OpenWrt luci-app-samba4 read ACL remote code execution via smbd. The current sources do not mark it as known exploited. The current feed maps openwrt/luci (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jul 12, 2026Updated Sep 30, 2026Source checked Sep 30, 2026First seen by HOL Jul 12, 2026Material review Sep 30, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.7
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 8.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps openwrt/luci (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
openwrt/lucigeneric	>=0 <24.10.8 \|\| >=25.12.0 <25.12.5	24.10.8, 25.12.5

Recommended response

Check inventory. Check lockfiles and deployed manifests for openwrt/luci.
Review the reported fix. Update openwrt/luci to 24.10.8 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Jul 12, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 30, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Jul 12, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.