{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-53879 exists.","fix":"No fix has been published for CVE-2023-53879 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-53879 is a medium-severity memory corruption vulnerability in neonguvenlik NVClient, published on 15 Dec 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2023-53879 and fix it if it is affected.\n\nWhat it is: CVE-2023-53879 is a medium-severity memory corruption vulnerability in neonguvenlik NVClient, published on 15 Dec 2025. It can only be exploited from the same machine or local network, 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-2023-53879 exists.\n\nAffected product: neonguvenlik NVClient. 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-2023-53879/ (Markdown: https://insights.sbomify.com/CVE-2023-53879/index.md)","id":"CVE-2023-53879","markdown":"https://insights.sbomify.com/CVE-2023-53879/index.md","name":"CVE-2023-53879","record":{"aliases":["GHSA-m8m6-q237-vh9r"],"analysis":{"component_type":"desktop_application","fix_type":"no_fix_stated","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"NVClient desktop app","requires_auth":"none","summary":"Attackers can crash NVClient by pasting a crafted payload into the contact field, causing a stack buffer overflow and denial of service.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"nvclient","vendor":"eyemaxsystems"}],"cvss":{"score":6.7,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-121","name":"Stack-based Buffer Overflow"}],"description":"NVClient 5.0 contains a stack buffer overflow vulnerability in the user configuration contact field that allows attackers to crash the application. Attackers can overwrite 846 bytes of memory by pasting a crafted payload into the contact box, causing a denial of service condition.","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":"NVClient 5.0 Stack Buffer Overflow Vulnerability via User Configuration","id":"CVE-2023-53879","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2023"},"n_packages":0,"n_references":3,"next":{"headline":"Lucee 5.4.2.17 Authenticated Reflected Cross-Site Scripting via Admin Interfaces","id":"CVE-2023-53880"},"packages":[],"prev":{"headline":"Member Login Script 3.3 Client-Side Request Desynchronization Vulnerability","id":"CVE-2023-53878"},"products":["NVClient"],"published":"2025-12-15","related":[],"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":"partial"},"state":"PUBLISHED","updated":"2026-05-12","vendors":["neonguvenlik"]},"summary":"Attackers can crash NVClient by pasting a crafted payload into the contact field, causing a stack buffer overflow and denial of service.","url":"https://insights.sbomify.com/CVE-2023-53879/"}