{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-55731 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-55731 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-55731 is a medium-severity denial of service vulnerability in Loytec L-DALI, published on 24 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-55731 and fix it if it is affected.\n\nWhat it is: CVE-2026-55731 is a medium-severity denial of service vulnerability in Loytec L-DALI, published on 24 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-55731 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-2026-55731/ (Markdown: https://insights.sbomify.com/CVE-2026-55731/index.md)","id":"CVE-2026-55731","markdown":"https://insights.sbomify.com/CVE-2026-55731/index.md","name":"CVE-2026-55731","record":{"aliases":["GHSA-f6g5-9x29-2jp2"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Loytec LINX firmware","requires_auth":"none","summary":"Unauthenticated remote attackers can cause persistent denial of service via CPU exhaustion in Loytec LINX devices using crafted SNMP requests.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"NCSC.ch","cpe":[],"cvss":{"score":6.6,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U","version":"4.0"},"cwes":[{"id":"CWE-606","name":"Unchecked Input for Loop Condition"}],"description":"Unchecked input for loop condition (CWE-606) in the SNMP agent in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows an unauthenticated remote attacker to cause persistent denial of service (CPU exhaustion) via a crafted SNMP GETNEXT request with a large OID component.","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: Unchecked input for loop condition in the SNMP agent","id":"CVE-2026-55731","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Loytec LINX firmware: Out-of-bounds Read in BACnet packet parsing (bacdt_datetime_to_tod)","id":"CVE-2026-55732"},"packages":[],"prev":{"headline":"Loytec LWEB802: Reflected Cross-Site Scripting in LWEB802","id":"CVE-2026-55730"},"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-24","vendors":["Loytec"]},"summary":"Unauthenticated remote attackers can cause persistent denial of service via CPU exhaustion in Loytec LINX devices using crafted SNMP requests.","url":"https://insights.sbomify.com/CVE-2026-55731/"}