{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-77031 exists.","fix":"No fix has been published for CVE-2026-77031 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-77031 is a medium-severity command injection vulnerability in Tenda CH22, published on 20 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-77031 and fix it if it is affected.\n\nWhat it is: CVE-2026-77031 is a medium-severity command injection vulnerability in Tenda CH22, published on 20 Aug 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-2026-77031 exists.\n\nAffected product: Tenda CH22. 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-2026-77031/ (Markdown: https://insights.sbomify.com/CVE-2026-77031/index.md)","id":"CVE-2026-77031","markdown":"https://insights.sbomify.com/CVE-2026-77031/index.md","name":"CVE-2026-77031","record":{"aliases":["GHSA-j7w9-4ff7-r5qf"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Tenda CH22 router","requires_auth":"low_privilege","summary":"Remote attackers can execute arbitrary commands on Tenda CH22 routers via the formcreateFileName function, requiring immediate attention from network administrators.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P","version":"4.0"},"cwes":[{"id":"CWE-77","name":"Improper Neutralization of Special Elements used in a Command"},{"id":"CWE-74","name":"Improper Neutralization of Special Elements in Output Used by a Downstream Component"}],"description":"A vulnerability has been found in Tenda CH22 1.0.0.1. The affected element is the function formcreateFileName of the file /goform/formcreateFileName. The manipulation of the argument fileNameMit leads to command injection. The attack can be initiated remotely. The exploit has been disclosed to the public 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":"Tenda CH22 formcreateFileName command injection","id":"CVE-2026-77031","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":"Missing authorization in JEM - Joomla Event Manager extension for Joomla","id":"CVE-2026-77034"},"packages":[],"prev":{"headline":"Joomla Extension - yootheme.com - Missing CSRF tokens on front-end state changes in Zoo \u003c 4.1.66","id":"CVE-2026-77029"},"products":["CH22"],"published":"2026-08-20","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":"partial"},"state":"PUBLISHED","updated":"2026-08-20","vendors":["Tenda"]},"summary":"Remote attackers can execute arbitrary commands on Tenda CH22 routers via the formcreateFileName function, requiring immediate attention from network administrators.","url":"https://insights.sbomify.com/CVE-2026-77031/"}