{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-62646 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-62646 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-62646 is a critical authentication bypass vulnerability in Siemens Reyrolle 7SR5, published on 8 Sep 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-2026-62646 and fix it if it is affected.\n\nWhat it is: CVE-2026-62646 is a critical authentication bypass vulnerability in Siemens Reyrolle 7SR5, published on 8 Sep 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-2026-62646 in the wild and no public exploit code.\n\nAffected product: Siemens Reyrolle 7SR5. 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-2026-62646/ (Markdown: https://insights.sbomify.com/CVE-2026-62646/index.md)","id":"CVE-2026-62646","markdown":"https://insights.sbomify.com/CVE-2026-62646/index.md","name":"CVE-2026-62646","record":{"aliases":["GHSA-5w7q-mmr4-39pj"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["account_takeover","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Siemens Reyrolle relay","requires_auth":"none","summary":"Unauthenticated attackers can predict low-entropy session tokens to bypass authentication on Siemens Reyrolle 7SR5 devices.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"siemens","cpe":[],"cvss":{"score":9.1,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-331","name":"Insufficient Entropy"}],"description":"A vulnerability has been identified in Reyrolle 7SR5 (All versions \u003c V2.70). A session identifier is generated using an algorithm with insufficient randomness, resulting in a token with low entropy that can be predicted or brute-forced within a feasible number of attempts. This could allow an unauthenticated remote attacker to derive valid session identifiers and bypass authentication.","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":"Auth bypass in Reyrolle 7SR5","id":"CVE-2026-62646","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Weak cryptography in Reyrolle 7SR5","id":"CVE-2026-62647"},"packages":[],"prev":{"headline":"Auth bypass in Reyrolle 7SR5","id":"CVE-2026-62645"},"products":["Reyrolle 7SR5"],"published":"2026-09-08","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":"2026-09-10","vendors":["Siemens"]},"summary":"Unauthenticated attackers can predict low-entropy session tokens to bypass authentication on Siemens Reyrolle 7SR5 devices.","url":"https://insights.sbomify.com/CVE-2026-62646/"}