{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2023-27988 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-27988 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-27988 is a high-severity command injection vulnerability in Zyxel NAS326 firmware, published on 30 May 2023. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-27988 and fix it if it is affected.\n\nWhat it is: CVE-2023-27988 is a high-severity command injection vulnerability in Zyxel NAS326 firmware, published on 30 May 2023. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-27988 in the wild and no public exploit code.\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-2023-27988/ (Markdown: https://insights.sbomify.com/CVE-2023-27988/index.md)","id":"CVE-2023-27988","markdown":"https://insights.sbomify.com/CVE-2023-27988/index.md","name":"CVE-2023-27988","record":{"aliases":["GHSA-wc8j-6g5m-3r95"],"analysis":{"component_type":"iot_embedded","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Zyxel NAS firmware","requires_auth":"high_privilege","summary":"Authenticated administrators can remotely execute OS commands on Zyxel NAS devices due to improper input handling.","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":7.2,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:H/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 post-authentication command injection vulnerability in the Zyxel NAS326 firmware versions prior to V5.21(AAZF.13)C0 could allow an authenticated attacker with administrator privileges to execute some operating system (OS) commands on an affected device remotely.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Command injection in NAS326 firmware","id":"CVE-2023-27988","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"command_injection","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Memory corruption in NR7101 firmware","id":"CVE-2023-27989"},"packages":[],"prev":{"headline":"Apache Linkis gateway module token authentication bypass","id":"CVE-2023-27987"},"products":["NAS326 firmware"],"published":"2023-05-30","related":[{"cvss_score":9.8,"headline":"Zyxel Multiple NAS Devices Command Injection","id":"CVE-2023-27992","kev_date_added":"2023-06-23","published":"2023-06-19"},{"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":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-01-14","vendors":["Zyxel"]},"summary":"Authenticated administrators can remotely execute OS commands on Zyxel NAS devices due to improper input handling.","url":"https://insights.sbomify.com/CVE-2023-27988/"}