{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-64393 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2025-64393 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-64393 is a critical unsafe deserialization vulnerability in Veeam Backup and Replication, published on 7 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-64393 and fix it if it is affected.\n\nWhat it is: CVE-2025-64393 is a critical unsafe deserialization vulnerability in Veeam Backup and Replication, published on 7 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2025-64393 in the wild and no public exploit code.\n\nAffected product: Veeam Backup and Replication. 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-2025-64393/ (Markdown: https://insights.sbomify.com/CVE-2025-64393/index.md)","id":"CVE-2025-64393","markdown":"https://insights.sbomify.com/CVE-2025-64393/index.md","name":"CVE-2025-64393","record":{"aliases":["GHSA-6m95-66x2-x5hx"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Backup and Replication","requires_auth":"low_privilege","summary":"A Backup Viewer can execute arbitrary code as SYSTEM on the Veeam Backup \u0026 Replication server due to unsafe deserialization.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"hackerone","cpe":[],"cvss":{"score":9.4,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"This vulnerability in Veeam Backup \u0026 Replication allows a Backup Viewer to execute arbitrary code as SYSTEM on the backup server.","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":"Deserialization in Backup and Replication","id":"CVE-2025-64393","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"deserialization","year":"2025"},"n_packages":0,"n_references":1,"next":{"headline":"A vulnerability allowing a low-privileged local user to write arbitrary files with SYSTEM privileges during the installation of Veeam Backup","id":"CVE-2025-64394"},"packages":[],"prev":{"headline":"Cross-site scripting in Backup Enterprise Manager","id":"CVE-2025-64392"},"products":["Backup and Replication"],"published":"2026-10-07","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-10-08","vendors":["Veeam"]},"summary":"A Backup Viewer can execute arbitrary code as SYSTEM on the Veeam Backup \u0026 Replication server due to unsafe deserialization.","url":"https://insights.sbomify.com/CVE-2025-64393/"}