{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9436 exists.","fix":"No fix has been published for CVE-2026-9436 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-9436 is a critical command injection vulnerability in Totolink A8000RU, published on 25 May 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-2026-9436 and fix it if it is affected.\n\nWhat it is: CVE-2026-9436 is a critical command injection vulnerability in Totolink A8000RU, published on 25 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9436 exists.\n\nAffected product: Totolink A8000RU. 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-2026-9436/ (Markdown: https://insights.sbomify.com/CVE-2026-9436/index.md)","id":"CVE-2026-9436","markdown":"https://insights.sbomify.com/CVE-2026-9436/index.md","name":"CVE-2026-9436","record":{"aliases":["GHSA-66fw-g229-xchr"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Totolink router","requires_auth":"none","summary":"Remote attackers can execute arbitrary OS commands via the setL2tpServerCfg function in the Totolink A8000RU web management interface.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"},{"id":"CWE-77","name":"Improper Neutralization of Special Elements used in a Command"}],"description":"A flaw has been found in Totolink A8000RU 7.1cu.643_b20200521. The impacted element is the function setL2tpServerCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Executing a manipulation of the argument enable can lead to os command injection. The attack can be executed remotely. The exploit has been published and may be used.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"Totolink A8000RU Web Management cstecgi.cgi setL2tpServerCfg os command injection","id":"CVE-2026-9436","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"command_injection","year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"DTStack Taier REST API Runtime.exec os command injection","id":"CVE-2026-9437"},"packages":[],"prev":{"headline":"Totolink A8000RU Web Management cstecgi.cgi setQosCfg os command injection","id":"CVE-2026-9435"},"products":["A8000RU"],"published":"2026-05-25","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":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-05-28","vendors":["Totolink"]},"summary":"Remote attackers can execute arbitrary OS commands via the setL2tpServerCfg function in the Totolink A8000RU web management interface.","url":"https://insights.sbomify.com/CVE-2026-9436/"}