{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-12503 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-12503 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-12503 is a critical path traversal vulnerability in Loytec L-DALI, published on 24 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-12503 and fix it if it is affected.\n\nWhat it is: CVE-2026-12503 is a critical path traversal vulnerability in Loytec L-DALI, published on 24 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-12503 in the wild and no public exploit code.\n\nAffected product: Loytec L-DALI. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-12503/ (Markdown: https://insights.sbomify.com/CVE-2026-12503/index.md)","id":"CVE-2026-12503","markdown":"https://insights.sbomify.com/CVE-2026-12503/index.md","name":"CVE-2026-12503","record":{"aliases":["GHSA-4p7f-6rpf-28mq"],"analysis":{"component_type":"iot_embedded","fix_type":"upgrade","impacts":["privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Loytec LINX firmware","requires_auth":"high_privilege","summary":"An authenticated attacker can escalate privileges to root via a symlink attack in the larm_starter binary on Loytec LINX devices.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"NCSC.ch","cpe":[],"cvss":{"score":9.2,"severity":"critical","source":"cna","vector":"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","version":"4.0"},"cwes":[{"id":"CWE-59","name":"Improper Link Resolution Before File Access"}],"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`.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Loytec LINX firmware: Improper Link Resolution in /usr/bin/larm_starter","id":"CVE-2026-12503","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Loytec LINX firmware: Improper Authentication in PAM configuration","id":"CVE-2026-12504"},"packages":[],"prev":{"headline":"Loytec LINX firmware: Improper Privilege Management in /usr/bin/ltsudo","id":"CVE-2026-12502"},"products":["L-DALI","L-GATE","L-INX","L-IOB","L-PAD","L-ROC","L-VIS","LIP-ME20xC"],"published":"2026-07-24","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-07-24","vendors":["Loytec"]},"summary":"An authenticated attacker can escalate privileges to root via a symlink attack in the larm_starter binary on Loytec LINX devices.","url":"https://insights.sbomify.com/CVE-2026-12503/"}