{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-21836 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2024-21836 yet. Limit exposure of the affected software until one is available.","what":"CVE-2024-21836 is a high-severity memory corruption vulnerability in llama.cpp, published on 26 Feb 2024. 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-2024-21836 and fix it if it is affected.\n\nWhat it is: CVE-2024-21836 is a high-severity memory corruption vulnerability in llama.cpp, published on 26 Feb 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2024-21836 in the wild and no public exploit code.\n\nAffected product: llama.cpp. 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-2024-21836/ (Markdown: https://insights.sbomify.com/CVE-2024-21836/index.md)","id":"CVE-2024-21836","markdown":"https://insights.sbomify.com/CVE-2024-21836/index.md","name":"CVE-2024-21836","record":{"aliases":["GHSA-fhv7-8956-mv3h"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"llama.cpp library","requires_auth":"none","summary":"A heap-based buffer overflow in llama.cpp allows attackers to execute arbitrary code via a specially crafted GGUF file.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"talos","cpe":[{"product":"llama.cpp","vendor":"ggml"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"A heap-based buffer overflow vulnerability exists in the GGUF library header.n_tensors functionality of llama.cpp Commit 18c2e17. A specially crafted .gguf file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.","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 llama.cpp","id":"CVE-2024-21836","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2024"},"n_packages":0,"n_references":1,"next":{"headline":"Privilege escalation in Intel(R) Quartus(R) Prime Lite Edition Design software","id":"CVE-2024-21837"},"packages":[],"prev":{"headline":"Privilege escalation in Intel(R) XTU software","id":"CVE-2024-21835"},"products":["llama.cpp"],"published":"2024-02-26","related":[{"cvss_score":10,"headline":"llama.cpp allows write-what-where in rpc_server::set_tensor","id":"CVE-2024-42479","kev_date_added":null,"published":"2024-08-12"},{"cvss_score":9.8,"headline":"llama.cpp: Unauthenticated RCE via GRAPH_COMPUTE buffer=0 bypass in llama.cpp RPC backend","id":"CVE-2026-34159","kev_date_added":null,"published":"2026-04-01"},{"cvss_score":9.2,"headline":"llama.cpp b4882–b9058 Buffer Overflow in KV Cache State Restore","id":"CVE-2026-43629","kev_date_added":null,"published":"2026-08-06"},{"cvss_score":9.2,"headline":"llama.cpp b7492–b9060 Use-After-Free RCE via llama-server","id":"CVE-2026-43631","kev_date_added":null,"published":"2026-08-06"},{"cvss_score":9.2,"headline":"llama.cpp b7492–b9060 Use-After-Free in Tokenization Endpoints","id":"CVE-2026-43632","kev_date_added":null,"published":"2026-08-06"},{"cvss_score":8.8,"headline":"llama.cpp has Out-of-bounds Write in llama-server","id":"CVE-2026-21869","kev_date_added":null,"published":"2026-01-07"},{"cvss_score":8.8,"headline":"llama.cpp Vulnerable to Buffer Overflow via Malicious GGUF Model","id":"CVE-2025-49847","kev_date_added":null,"published":"2025-06-17"}],"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":"total"},"state":"PUBLISHED","updated":"2025-11-04","vendors":["llama.cpp"]},"summary":"A heap-based buffer overflow in llama.cpp allows attackers to execute arbitrary code via a specially crafted GGUF file.","url":"https://insights.sbomify.com/CVE-2024-21836/"}