CVE-2026-12503
Last modified
CVE-2026-12503 is a critical-severity vulnerability rated 9.2/10 on the CVSS scale. 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`.. EPSS estimates a 0.14% chance of exploitation in the next 30 days.
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`.
Metrics
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Loytec | LIP-ME20xC | <= 8.4.16 |
| Loytec | L-INX | <= 8.4.16 |
| Loytec | L-GATE | <= 8.4.16 |
| Loytec | L-ROC | <= 8.4.16 |
| Loytec | L-IOB | <= 8.4.16 |
| Loytec | L-DALI | <= 8.4.16 |
| Loytec | L-VIS | <= 8.4.16 |
| Loytec | L-PAD | <= 8.4.16 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
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