{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-53966 exists.","fix":"No fix has been published for CVE-2023-53966 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-53966 is a critical memory corruption vulnerability in SOUND4 LinkAndShare Transmitter, published on 22 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-53966 and fix it if it is affected.\n\nWhat it is: CVE-2023-53966 is a critical memory corruption vulnerability in SOUND4 LinkAndShare Transmitter, published on 22 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-53966 exists.\n\nAffected product: SOUND4 LinkAndShare Transmitter. 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-2023-53966/ (Markdown: https://insights.sbomify.com/CVE-2023-53966/index.md)","id":"CVE-2023-53966","markdown":"https://insights.sbomify.com/CVE-2023-53966/index.md","name":"CVE-2023-53966","record":{"aliases":["GHSA-xh8h-mfrv-w6wh"],"analysis":{"component_type":"iot_embedded","fix_type":"no_fix_stated","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Broadcast transmitter","requires_auth":"none","summary":"Attackers can execute arbitrary code or crash the transmitter by exploiting a format string vulnerability in environment variables.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"linkandshare_transmitter","vendor":"sound4"}],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-134","name":"Use of Externally-Controlled Format String"}],"description":"SOUND4 LinkAndShare Transmitter 1.1.2 contains a format string vulnerability that allows attackers to trigger memory stack overflows through maliciously crafted environment variables. Attackers can manipulate the username environment variable with format string payloads to potentially execute arbitrary code and crash the application.","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":"SOUND4 LinkAndShare Transmitter 1.1.2 Format String Stack Buffer Overflow","id":"CVE-2023-53966","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2023"},"n_packages":0,"n_references":4,"next":{"headline":"Screen SFT DAB 600/C Firmware 1.9.3 Authentication Bypass Admin Password Change","id":"CVE-2023-53967"},"packages":[],"prev":{"headline":"SOUND4 Server Service 4.1.102 Local Privilege Escalation via Unquoted Service Path","id":"CVE-2023-53965"},"products":["SOUND4 LinkAndShare Transmitter"],"published":"2025-12-22","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":"yes","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-12-22","vendors":["SOUND4 Ltd."]},"summary":"Attackers can execute arbitrary code or crash the transmitter by exploiting a format string vulnerability in environment variables.","url":"https://insights.sbomify.com/CVE-2023-53966/"}