{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11556 exists.","fix":"No fix has been published for CVE-2026-11556 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-11556 is a high-severity command injection vulnerability in Tenda F451, published on 8 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-11556 and fix it if it is affected.\n\nWhat it is: CVE-2026-11556 is a high-severity command injection vulnerability in Tenda F451, published on 8 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11556 exists.\n\nAffected product: Tenda F451. 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-2026-11556/ (Markdown: https://insights.sbomify.com/CVE-2026-11556/index.md)","id":"CVE-2026-11556","markdown":"https://insights.sbomify.com/CVE-2026-11556/index.md","name":"CVE-2026-11556","record":{"aliases":["GHSA-47fv-fgr6-m346"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Tenda F451 router","requires_auth":"low_privilege","summary":"Remote attackers can execute arbitrary OS commands on Tenda F451 routers via the Web Management Interface's WriteFacMac function.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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 security flaw has been discovered in Tenda F451 1.0.0.7/1.0.0.9. Impacted is the function formWriteFacMac of the file /goform/WriteFacMac of the component Web Management Interface. Performing a manipulation of the argument mac results in os command injection. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks.","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":"Tenda F451 Web Management WriteFacMac formWriteFacMac os command injection","id":"CVE-2026-11556","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":"Tenda F451 Web Management Natlimit fromNatlimit stack-based overflow","id":"CVE-2026-11557"},"packages":[],"prev":{"headline":"D-Link DGS-1100-08PD Web boa.conf least privilege violation","id":"CVE-2026-11555"},"products":["F451"],"published":"2026-06-08","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":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-06-09","vendors":["Tenda"]},"summary":"Remote attackers can execute arbitrary OS commands on Tenda F451 routers via the Web Management Interface's WriteFacMac function.","url":"https://insights.sbomify.com/CVE-2026-11556/"}