{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4543 exists.","fix":"No fix has been published for CVE-2026-4543 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-4543 is a medium-severity command injection vulnerability in Wavlink WL-WN578W2, published on 22 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-4543 and fix it if it is affected.\n\nWhat it is: CVE-2026-4543 is a medium-severity command injection vulnerability in Wavlink WL-WN578W2, published on 22 Mar 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-2026-4543 exists.\n\nAffected product: Wavlink WL-WN578W2. 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-2026-4543/ (Markdown: https://insights.sbomify.com/CVE-2026-4543/index.md)","id":"CVE-2026-4543","markdown":"https://insights.sbomify.com/CVE-2026-4543/index.md","name":"CVE-2026-4543","record":{"aliases":["GHSA-xvp7-mx9h-8g48"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Wavlink router","requires_auth":"low_privilege","summary":"Remote attackers can execute arbitrary commands on Wavlink WL-WN578W2 routers via a command injection vulnerability in the firewall.cgi POST handler.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[{"product":"wl-wn578w2_firmware","vendor":"wavlink"}],"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:N/SI:N/SA:N/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 was found in Wavlink WL-WN578W2 221110. The impacted element is an unknown function of the file /cgi-bin/firewall.cgi of the component POST Request Handler. Performing a manipulation of the argument dmz_flag/del_flag results in command injection. It is possible to initiate the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.","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":"Wavlink WL-WN578W2 POST Request firewall.cgi command injection","id":"CVE-2026-4543","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":"Wavlink WL-WN578W2 POST Request login.cgi cross site scripting","id":"CVE-2026-4544"},"packages":[],"prev":{"headline":"SSCMS layerImage Endpoint LayerImageController.Submit.cs path traversal","id":"CVE-2026-4542"},"products":["WL-WN578W2"],"published":"2026-03-22","related":[{"cvss_score":6.9,"headline":"Wavlink WL-WN578W2 wireless.cgi sub_404850 os command injection","id":"CVE-2025-10358","kev_date_added":null,"published":"2025-09-13"},{"cvss_score":6.9,"headline":"Wavlink WL-WN578W2 wireless.cgi sub_404DBC os command injection","id":"CVE-2025-10359","kev_date_added":null,"published":"2025-09-13"},{"cvss_score":6.9,"headline":"Wavlink WL-WN578W2 live_online.shtml information disclosure","id":"CVE-2025-10321","kev_date_added":null,"published":"2025-09-12"},{"cvss_score":6.9,"headline":"Wavlink WL-WN578W2 sysinit.html password recovery","id":"CVE-2025-10322","kev_date_added":null,"published":"2025-09-12"},{"cvss_score":6.9,"headline":"Wavlink WL-WN578W2 wizard_rep.shtml sub_409184 command injection","id":"CVE-2025-10323","kev_date_added":null,"published":"2025-09-12"},{"cvss_score":6.9,"headline":"Wavlink WL-WN578W2 firewall.cgi sub_401C5C command injection","id":"CVE-2025-10324","kev_date_added":null,"published":"2025-09-12"}],"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":"2026-03-23","vendors":["Wavlink"]},"summary":"Remote attackers can execute arbitrary commands on Wavlink WL-WN578W2 routers via a command injection vulnerability in the firewall.cgi POST handler.","url":"https://insights.sbomify.com/CVE-2026-4543/"}