CVE-2026-12503

Vulnerability Description

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`.

Related Weaknesses (CWE)

CWE-59

References

https://www.loytec.com/support/product-security/advisories/8520-dibt-cve-2026052

FAQ

What is CVE-2026-12503?

CVE-2026-12503 is a documented vulnerability. 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 mak...

How severe is CVE-2026-12503?

CVSS scoring is not yet available for CVE-2026-12503. Check NVD for updates.

Is there a patch for CVE-2026-12503?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.