{"answers":{"affected":"It affects 8 products.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-45960 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2021-45960 is a high-severity vulnerability in Debian Debian Linux, published on 1 Jan 2022. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-45960 and fix it if it is affected.\n\nWhat it is: CVE-2021-45960 is a high-severity vulnerability in Debian Debian Linux, published on 1 Jan 2022. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-45960 exists.\n\nAffected product: Debian Debian Linux. 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-2021-45960/ (Markdown: https://insights.sbomify.com/CVE-2021-45960/index.md)","id":"CVE-2021-45960","markdown":"https://insights.sbomify.com/CVE-2021-45960/index.md","name":"CVE-2021-45960","record":{"aliases":["ALPINE-CVE-2021-45960","AZL-7124","CLEANSTART-2026-CC51357","DEBIAN-CVE-2021-45960","GHSA-pfmv-2r4f-j9mj","JLSEC-2025-42","UBUNTU-CVE-2021-45960"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"XML parsing library","requires_auth":"low_privilege","summary":"An integer overflow in libexpat's storeAtts function can cause memory corruption, potentially leading to denial of service or arbitrary code execution.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"libexpat","vendor":"libexpat_project"},{"product":"active_iq_unified_manager","vendor":"netapp"},{"product":"hci_baseboard_management_controller","vendor":"netapp"},{"product":"oncommand_workflow_automation","vendor":"netapp"},{"product":"solidfire_\\\u0026_hci_management_node","vendor":"netapp"},{"product":"sinema_remote_connect_server","vendor":"siemens"},{"product":"nessus","vendor":"tenable"}],"cvss":{"score":8.8,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-682","name":"Incorrect Calculation"}],"description":"In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory).","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2022-04-11","github_poc":2,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2022-04-11T11:45:57Z","kind":"github_poc","ref":"https://github.com/nanopathi/external_expat_AOSP10_r33_CVE-2021-45960","stars":0,"title":null},{"date":"2022-05-25T09:03:48Z","kind":"github_poc","ref":"https://github.com/Trinadh465/external_lib_AOSP10_r33_CVE-2021-45960_CVE-2021-46143-","stars":0,"title":null}],"tier":"weaponised"},"has_fix":true,"headline":"Integer overflow in n/a","id":"CVE-2021-45960","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","libexpat_project:libexpat","netapp:active_iq_unified_manager","netapp:oncommand_workflow_automation","netapp:solidfire_\\\u0026_hci_management_node","siemens:sinema_remote_connect_server","tenable:nessus"],"type":"integer_overflow","year":"2021"},"n_packages":0,"n_references":9,"next":{"headline":"Command injection in n/a","id":"CVE-2021-45966"},"packages":[],"prev":{"headline":"DO NOT USE THIS CANDIDATE NUMBER.","id":"CVE-2021-45959"},"products":["n/a"],"published":"2022-01-01","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-14","vendors":["n/a"]},"summary":"An integer overflow in libexpat's storeAtts function can cause memory corruption, potentially leading to denial of service or arbitrary code execution.","url":"https://insights.sbomify.com/CVE-2021-45960/"}