CVE-2026-12503

unknowncovered by 1 sourcefirst seen 2026-07-24

Improper Link Resolution (CWE-59) in /usr/bin/larm_starter in Loytec L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows an authenticated larmapp attacker to make /etc/passwd writable by the larmapp group (leading to root privilege escalation) via a symlink attack on /etc/lighttpd/ssl/server.pem.

⚡ Watch CVE-2026-12503

Get an email if CVE-2026-12503 is added to CISA KEV, gains public exploit code, or a new advisory cites it — max one per day, one-click unsubscribe.

Exploitation outlook

Low exploitation risk0.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.

Advisory coverage (1)

unknownCVE-2026-12503: Improper Link Resolution (CWE-59) in `/usr/bin/larm_starter` in Loytec L-INX, L-GATE, L-ROC, L…nvd · 2026-07-24

External references

NVD record for CVE-2026-12503

CVE.org record

Embed the live status

— this badge updates automatically when the KEV or exploit status changes. How to embed it →

[![CVE-2026-12503 status](https://www.csirts.com/badge/CVE-2026-12503)](https://www.csirts.com/cve/CVE-2026-12503)