{"answers":{"affected":"It affects 24 products.","exploited":"There is no known exploitation of CVE-2023-34140 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-34140 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-34140 is a medium-severity memory corruption vulnerability in Zyxel ATP series firmware, published on 17 Jul 2023. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-34140 and fix it if it is affected.\n\nWhat it is: CVE-2023-34140 is a medium-severity memory corruption vulnerability in Zyxel ATP series firmware, published on 17 Jul 2023. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-34140 in the wild and no public exploit code.\n\nAffected product: Zyxel ATP series 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-2023-34140/ (Markdown: https://insights.sbomify.com/CVE-2023-34140/index.md)","id":"CVE-2023-34140","markdown":"https://insights.sbomify.com/CVE-2023-34140/index.md","name":"CVE-2023-34140","record":{"aliases":["GHSA-65px-649g-rj37"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Zyxel network firmware","requires_auth":"none","summary":"An unauthenticated LAN attacker can cause denial of service in Zyxel network devices by sending a crafted request to the CAPWAP daemon.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Zyxel","cpe":[{"product":"nxc2500_firmware","vendor":"zyxel"},{"product":"nxc5500_firmware","vendor":"zyxel"},{"product":"usg_20w-vpn_firmware","vendor":"zyxel"},{"product":"usg_2200-vpn_firmware","vendor":"zyxel"},{"product":"usg_flex_100_firmware","vendor":"zyxel"},{"product":"usg_flex_100w_firmware","vendor":"zyxel"},{"product":"usg_flex_200_firmware","vendor":"zyxel"},{"product":"usg_flex_500_firmware","vendor":"zyxel"},{"product":"usg_flex_50_firmware","vendor":"zyxel"},{"product":"usg_flex_50w_firmware","vendor":"zyxel"},{"product":"usg_flex_700_firmware","vendor":"zyxel"},{"product":"zywall_atp100_firmware","vendor":"zyxel"},{"product":"zywall_atp100w_firmware","vendor":"zyxel"},{"product":"zywall_atp200_firmware","vendor":"zyxel"},{"product":"zywall_atp500_firmware","vendor":"zyxel"},{"product":"zywall_atp700_firmware","vendor":"zyxel"},{"product":"zywall_atp800_firmware","vendor":"zyxel"},{"product":"zywall_vpn100_firmware","vendor":"zyxel"},{"product":"zywall_vpn2s_firmware","vendor":"zyxel"},{"product":"zywall_vpn300_firmware","vendor":"zyxel"},{"product":"zywall_vpn50_firmware","vendor":"zyxel"},{"product":"zywall_vpn_100_firmware","vendor":"zyxel"},{"product":"zywall_vpn_300_firmware","vendor":"zyxel"},{"product":"zywall_vpn_50_firmware","vendor":"zyxel"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input"}],"description":"A buffer overflow vulnerability in the Zyxel ATP series firmware versions 4.32 through 5.36 Patch 2, USG FLEX series firmware versions 4.50 through 5.36 Patch 2,  USG FLEX 50(W) series firmware versions 4.16 through 5.36 Patch 2, USG20(W)-VPN series firmware versions 4.16 through 5.36 Patch 2, VPN series firmware versions 4.30 through 5.36 Patch 2, NXC2500 firmware versions 6.10(AAIG.0) through 6.10(AAIG.3), and NXC5500 firmware versions 6.10(AAOS.0) through 6.10(AAOS.4), could allow an unauthenticated, LAN-based attacker to cause denial of service (DoS) conditions by sending a crafted request to the CAPWAP daemon.","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":"Memory corruption in ATP series firmware","id":"CVE-2023-34140","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Command injection in ATP series firmware","id":"CVE-2023-34141"},"packages":[],"prev":{"headline":"Command injection in USG FLEX series firmware","id":"CVE-2023-34139"},"products":["ATP series firmware","NXC2500 firmware","NXC5500 firmware","USG FLEX 50(W) series firmware","USG FLEX series firmware","USG20(W)-VPN series firmware","VPN series firmware"],"published":"2023-07-17","related":[{"cvss_score":8,"headline":"Command injection in ATP series firmware","id":"CVE-2023-34141","kev_date_added":null,"published":"2023-07-17"}],"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":"partial"},"state":"PUBLISHED","updated":"2024-10-21","vendors":["Zyxel"]},"summary":"An unauthenticated LAN attacker can cause denial of service in Zyxel network devices by sending a crafted request to the CAPWAP daemon.","url":"https://insights.sbomify.com/CVE-2023-34140/"}