{"answers":{"affected":"It affects 3 products.","exploited":"Yes. Attackers have exploited CVE-2023-27992 in the wild since at least 23 Jun 2023.","fix":"No fix has been published for CVE-2023-27992 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 14 Jul 2023.","what":"CVE-2023-27992 is a critical command injection vulnerability in Zyxel NAS326 firmware, published on 19 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-27992 and fix it if it is affected.\n\nWhat it is: CVE-2023-27992 is a critical command injection vulnerability in Zyxel NAS326 firmware, published on 19 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2023-27992 in the wild since at least 23 Jun 2023.\n\nAffected product: Zyxel NAS326 firmware. 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-2023-27992/ (Markdown: https://insights.sbomify.com/CVE-2023-27992/index.md)","id":"CVE-2023-27992","markdown":"https://insights.sbomify.com/CVE-2023-27992/index.md","name":"CVE-2023-27992","record":{"aliases":["GHSA-5wv9-h9hr-4p52"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Zyxel NAS firmware","requires_auth":"none","summary":"Unauthenticated attackers can execute arbitrary OS commands on Zyxel NAS devices via crafted HTTP requests, requiring firmware upgrades.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Zyxel","cpe":[{"product":"nas326_firmware","vendor":"zyxel"},{"product":"nas540_firmware","vendor":"zyxel"},{"product":"nas542_firmware","vendor":"zyxel"}],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"}],"description":"The pre-authentication command injection vulnerability in the Zyxel NAS326 firmware versions prior to V5.21(AAZF.14)C0, NAS540 firmware versions prior to V5.21(AATB.11)C0, and NAS542 firmware versions prior to V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands remotely by sending a crafted HTTP request.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"exploited"},"has_fix":null,"headline":"Zyxel Multiple NAS Devices Command Injection","id":"CVE-2023-27992","indexable":true,"kev":{"dateAdded":"2023-06-23","dueDate":"2023-07-14","knownRansomwareCampaignUse":"Unknown","product":"Multiple Network-Attached Storage (NAS) Devices","requiredAction":"Apply updates per vendor instructions.","vendorProject":"Zyxel","vulnerabilityName":"Zyxel Multiple NAS Devices Command Injection Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"command_injection","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Path traversal in FortiADC","id":"CVE-2023-27993"},"packages":[],"prev":{"headline":"Command injection in ATP series firmware","id":"CVE-2023-27991"},"products":["NAS326 firmware","NAS540 firmware","NAS542 firmware"],"published":"2023-06-19","related":[{"cvss_score":9.8,"headline":"Command injection in NAS326 firmware","id":"CVE-2024-6342","kev_date_added":null,"published":"2024-09-10"},{"cvss_score":9.8,"headline":"Command injection in NAS326 firmware","id":"CVE-2024-29972","kev_date_added":null,"published":"2024-06-04"},{"cvss_score":9.8,"headline":"Command injection in NAS326 firmware","id":"CVE-2024-29973","kev_date_added":null,"published":"2024-06-04"},{"cvss_score":9.8,"headline":"File upload in NAS326 firmware","id":"CVE-2024-29974","kev_date_added":null,"published":"2024-06-04"},{"cvss_score":9.8,"headline":"Command injection in NAS326 firmware","id":"CVE-2023-35138","kev_date_added":null,"published":"2023-11-30"},{"cvss_score":9.8,"headline":"Command injection in NAS326 firmware","id":"CVE-2023-4473","kev_date_added":null,"published":"2023-11-30"}],"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":"open","licence":"CC0 1.0","name":"CISA KEV"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-10-21","vendors":["Zyxel"]},"summary":"Unauthenticated attackers can execute arbitrary OS commands on Zyxel NAS devices via crafted HTTP requests, requiring firmware upgrades.","url":"https://insights.sbomify.com/CVE-2023-27992/"}