{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3040 exists.","fix":"No fix has been published for CVE-2026-3040 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-3040 is a medium-severity command injection vulnerability in DrayTek Vigor 300B, published on 23 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-3040 and fix it if it is affected.\n\nWhat it is: CVE-2026-3040 is a medium-severity command injection vulnerability in DrayTek Vigor 300B, published on 23 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3040 exists.\n\nAffected product: DrayTek Vigor 300B. 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-2026-3040/ (Markdown: https://insights.sbomify.com/CVE-2026-3040/index.md)","id":"CVE-2026-3040","markdown":"https://insights.sbomify.com/CVE-2026-3040/index.md","name":"CVE-2026-3040","record":{"aliases":["GHSA-9xx2-jmjv-w5vp"],"analysis":{"component_type":"network_device","fix_type":"end_of_life","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"DrayTek router","requires_auth":"high_privilege","summary":"Authenticated attackers can execute arbitrary OS commands via the web management interface of the end-of-life DrayTek Vigor 300B router.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[{"product":"vigor300b_firmware","vendor":"draytek"}],"cvss":{"score":5.1,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/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 vulnerability was identified in DrayTek Vigor 300B up to 1.5.1.6. This affects the function cgiGetFile of the file /cgi-bin/mainfunction.cgi/uploadlangs of the component Web Management Interface. The manipulation of the argument File leads to os command injection. The attack may be initiated remotely. The exploit is publicly available and might be used. The vendor confirms that \"300B is EoL, and this is an authenticated vulnerability. We don't plan to fix it.\" This vulnerability only affects products that are no longer supported by the maintainer.","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":"DrayTek Vigor 300B Web Management uploadlangs cgiGetFile os command injection","id":"CVE-2026-3040","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"command_injection","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"xingfuggz BaykeShop Article Sidebar custom.html cross site scripting","id":"CVE-2026-3041"},"packages":[],"prev":{"headline":"BIND 9 server memory exhaustion during GSS-API TKEY negotiation","id":"CVE-2026-3039"},"products":["Vigor 300B"],"published":"2026-02-23","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"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":"2026-02-25","vendors":["DrayTek"]},"summary":"Authenticated attackers can execute arbitrary OS commands via the web management interface of the end-of-life DrayTek Vigor 300B router.","url":"https://insights.sbomify.com/CVE-2026-3040/"}