{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4558 exists.","fix":"No fix has been published for CVE-2026-4558 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-4558 is a high-severity command injection vulnerability in Linksys MR9600, 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-2026-4558 and fix it if it is affected.\n\nWhat it is: CVE-2026-4558 is a high-severity command injection vulnerability in Linksys MR9600, 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-2026-4558 exists.\n\nAffected product: Linksys MR9600. 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-2026-4558/ (Markdown: https://insights.sbomify.com/CVE-2026-4558/index.md)","id":"CVE-2026-4558","markdown":"https://insights.sbomify.com/CVE-2026-4558/index.md","name":"CVE-2026-4558","record":{"aliases":["GHSA-c659-rvfg-wgf8"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Linksys router","requires_auth":"low_privilege","summary":"Remote attackers can execute arbitrary OS commands on Linksys MR9600 routers via the SmartConnect.lua configuration interface.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[{"product":"mr9600_firmware","vendor":"linksys"}],"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 flaw has been found in Linksys MR9600 2.0.6.206937. Affected is the function smartConnectConfigure of the file SmartConnect.lua. Executing a manipulation of the argument configApSsid/configApPassphrase/srpLogin/srpPassword can lead to os command injection. The attack may be launched remotely. The exploit has been published and may 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":"Linksys MR9600 SmartConnect.lua smartConnectConfigure os command injection","id":"CVE-2026-4558","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"command_injection","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"Cross-site scripting in Image Photo Gallery Final Tiles Grid","id":"CVE-2026-4559"},"packages":[],"prev":{"headline":"code-projects Exam Form Submission update_s1.php cross site scripting","id":"CVE-2026-4557"},"products":["MR9600"],"published":"2026-03-22","related":[{"cvss_score":8.6,"headline":"Linksys MR9600 JNAP Action run_central2.sh BTRequestGetSmartConnectStatus os command injection","id":"CVE-2026-6992","kev_date_added":null,"published":"2026-04-25"},{"cvss_score":6.6,"headline":"Path Traversal vulnerability in Linksys MR9600, Linksys MX4200","id":"CVE-2026-25603","kev_date_added":null,"published":"2026-02-24"},{"cvss_score":4.6,"headline":"Path traversal in n/a","id":"CVE-2022-24372","kev_date_added":null,"published":"2022-04-27"}],"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":"total"},"state":"PUBLISHED","updated":"2026-03-23","vendors":["Linksys"]},"summary":"Remote attackers can execute arbitrary OS commands on Linksys MR9600 routers via the SmartConnect.lua configuration interface.","url":"https://insights.sbomify.com/CVE-2026-4558/"}