{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-11477 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2024-11477 is a high-severity vulnerability in 7-Zip, published on 22 Nov 2024. 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-2024-11477 and fix it if it is affected.\n\nWhat it is: CVE-2024-11477 is a high-severity vulnerability in 7-Zip, published on 22 Nov 2024. 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-2024-11477 exists.\n\nAffected product: 7-Zip. 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-2024-11477/ (Markdown: https://insights.sbomify.com/CVE-2024-11477/index.md)","id":"CVE-2024-11477","markdown":"https://insights.sbomify.com/CVE-2024-11477/index.md","name":"CVE-2024-11477","record":{"aliases":["DEBIAN-CVE-2024-11477","GHSA-882h-ff2x-f86q","UBUNTU-CVE-2024-11477"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"7-Zip archive library","requires_auth":"none","summary":"Remote attackers can execute arbitrary code via integer underflow in 7-Zip's Zstandard decompression when processing malicious archives.","user_interaction":"required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"zdi","cpe":[{"product":"7-zip","vendor":"7-zip"}],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-191","name":"Integer Underflow (Wrap or Wraparound)"}],"description":"7-Zip Zstandard Decompression Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.\n\nThe specific flaw exists within the implementation of Zstandard decompression. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-24346.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2024-11-29","github_poc":1,"max_poc_stars":64,"metasploit":0,"nuclei":0,"refs":[{"date":"2024-11-29T06:13:36Z","kind":"github_poc","ref":"https://github.com/TheN00bBuilder/cve-2024-11477-writeup","stars":64,"title":"CVE-2024-11477 7Zip Code Execution Writeup and Analysis"}],"tier":"weaponised"},"has_fix":true,"headline":"7-Zip Zstandard Decompression Integer Underflow Remote Code Execution Vulnerability","id":"CVE-2024-11477","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2024"},"n_packages":0,"n_references":1,"next":{"headline":"This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.","id":"CVE-2024-11478"},"packages":[],"prev":{"headline":"Privilege escalation in Omnissa Horizon Client for MacOS","id":"CVE-2024-11468"},"products":["7-Zip"],"published":"2024-11-22","related":[{"cvss_score":7,"headline":"7-Zip Mark of the Web Bypass","id":"CVE-2025-0411","kev_date_added":"2025-02-06","published":"2025-01-25"},{"cvss_score":10,"headline":"Other in n/a","id":"CVE-2008-6536","kev_date_added":null,"published":"2009-03-30"},{"cvss_score":8.8,"headline":"GHSL-2026-140_7-Zip: 7-Zip has a heap buffer overflow via NTFS compressed stream buffer under-allocation","id":"CVE-2026-48095","kev_date_added":null,"published":"2026-06-05"},{"cvss_score":8.8,"headline":"Privilege escalation in n/a","id":"CVE-2018-10172","kev_date_added":null,"published":"2018-04-16"},{"cvss_score":8.8,"headline":"Memory corruption in n/a","id":"CVE-2016-2335","kev_date_added":null,"published":"2016-06-07"},{"cvss_score":7.8,"headline":"7-Zip SquashFS File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability","id":"CVE-2023-40481","kev_date_added":null,"published":"2024-05-03"}],"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-02-15","vendors":["7-Zip"]},"summary":"Remote attackers can execute arbitrary code via integer underflow in 7-Zip's Zstandard decompression when processing malicious archives.","url":"https://insights.sbomify.com/CVE-2024-11477/"}