{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-7340 exists.","fix":"No fix has been published for CVE-2023-7340 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-7340 is a medium-severity memory corruption vulnerability in Wazuh Wazuh, published on 27 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2023-7340 and fix it if it is affected.\n\nWhat it is: CVE-2023-7340 is a medium-severity memory corruption vulnerability in Wazuh Wazuh, published on 27 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-7340 exists.\n\nAffected product: Wazuh Wazuh. 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-2023-7340/ (Markdown: https://insights.sbomify.com/CVE-2023-7340/index.md)","id":"CVE-2023-7340","markdown":"https://insights.sbomify.com/CVE-2023-7340/index.md","name":"CVE-2023-7340","record":{"aliases":["GHSA-vp8c-mm4j-2g97"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Wazuh authd service","requires_auth":"none","summary":"Attackers can cause a denial of service in the Wazuh authentication daemon by sending specially crafted input that triggers a heap-based buffer overflow.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"wazuh","vendor":"wazuh"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"Wazuh authd contains a heap-buffer overflow vulnerability that allows attackers to cause memory corruption and malformed heap data by sending specially crafted input. Attackers can exploit this vulnerability to trigger a denial of service condition, resulting in low availability impact to the authentication daemon.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Wazuh authd service (os_auth) Heap-based Buffer Overflow","id":"CVE-2023-7340","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"wazuh:wazuh","products":["wazuh:wazuh"],"type":"memory_corruption","year":"2023"},"n_packages":0,"n_references":2,"next":{"headline":"Belden HiSecOS Web Server Privilege Escalation","id":"CVE-2023-7342"},"packages":[],"prev":{"headline":"Data collection for dowloading leads into buffer overflow","id":"CVE-2023-7339"},"products":["Wazuh"],"published":"2026-03-27","related":[{"cvss_score":9.9,"headline":"Wazuh Server Deserialization of Untrusted Data","id":"CVE-2025-24016","kev_date_added":"2025-06-10","published":"2025-02-10"},{"cvss_score":9.8,"headline":"Wazuh Analysis Engine Event Decoder Heap-based Buffer Overflow Remote Code Execution Vulnerability","id":"CVE-2024-32038","kev_date_added":null,"published":"2024-04-19"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2021-44079","kev_date_added":null,"published":"2021-11-22"},{"cvss_score":9.5,"headline":"Remote code execution and local privilege escalation in Wazuh Windows agent via NetNTLMv2 hash theft","id":"CVE-2024-1243","kev_date_added":null,"published":"2025-06-11"},{"cvss_score":9.1,"headline":"Wazuh cluster worker file sync allows arbitrary file write under /var/ossec (incomplete fix for CVE-2026-30893)","id":"CVE-2026-61800","kev_date_added":null,"published":"2026-08-27"},{"cvss_score":9.1,"headline":"Wazuh: merged-file header path traversal in cluster sync allows arbitrary file write under WAZUH_PATH in Wazuh manager","id":"CVE-2026-48024","kev_date_added":null,"published":"2026-08-19"},{"cvss_score":9.1,"headline":"Path traversal in wazuh","id":"CVE-2026-48162","kev_date_added":null,"published":"2026-08-19"}],"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":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-15","vendors":["Wazuh"]},"summary":"Attackers can cause a denial of service in the Wazuh authentication daemon by sending specially crafted input that triggers a heap-based buffer overflow.","url":"https://insights.sbomify.com/CVE-2023-7340/"}