{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-27465 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-27465 is a medium-severity denial of service vulnerability in Xen Xen, published on 16 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-27465 and fix it if it is affected.\n\nWhat it is: CVE-2025-27465 is a medium-severity denial of service vulnerability in Xen Xen, published on 16 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2025-27465 in the wild and no public exploit code.\n\nAffected product: Xen Xen. 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-2025-27465/ (Markdown: https://insights.sbomify.com/CVE-2025-27465/index.md)","id":"CVE-2025-27465","markdown":"https://insights.sbomify.com/CVE-2025-27465/index.md","name":"CVE-2025-27465","record":{"aliases":["ALPINE-CVE-2025-27465","DEBIAN-CVE-2025-27465","GHSA-2vp3-crwq-3fg5","SUSE-SU-2025:02471-1","UBUNTU-CVE-2025-27465","openSUSE-SU-2025:15342-1"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Xen hypervisor","requires_auth":"low_privilege","summary":"A flaw in Xen's x86 exception handling for emulated instructions causes fatal crashes instead of graceful recovery, leading to denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"XEN","cpe":[{"product":"xen","vendor":"xen"}],"cvss":{"score":4.3,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-755","name":"Improper Handling of Exceptional Conditions"}],"description":"Certain instructions need intercepting and emulating by Xen.  In some\ncases Xen emulates the instruction by replaying it, using an executable\nstub.  Some instructions may raise an exception, which is supposed to be\nhandled gracefully.  Certain replayed instructions have additional logic\nto set up and recover the changes to the arithmetic flags.\n\nFor replayed instructions where the flags recovery logic is used, the\nmetadata for exception handling was incorrect, preventing Xen from\nhandling the the exception gracefully, treating it as fatal instead.","ecosystems":["SUSE:Linux Enterprise Server 12 SP5-LTSS","SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5","openSUSE:Tumbleweed"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"x86: Incorrect stubs exception handling for flags recovery","id":"CVE-2025-27465","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"xen:xen","products":["xen:xen"],"type":"denial_of_service","year":"2025"},"n_packages":3,"n_references":1,"next":{"headline":"Mutiple vulnerabilities in the Viridian interface","id":"CVE-2025-27466"},"packages":[{"ecosystem":"SUSE:Linux Enterprise Server 12 SP5-LTSS","fixed":["4.12.4_62-3.130.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSS","source":"SUSE-SU-2025:02471-1"},{"ecosystem":"SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5","fixed":["4.12.4_62-3.130.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5","source":"SUSE-SU-2025:02471-1"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["4.20.1_02-1.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/opensuse/xen\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2025:15342-1"}],"prev":{"headline":"WinPVDrivers: Excessive permissions on user-exposed devices","id":"CVE-2025-27464"},"products":["Xen"],"published":"2025-07-16","related":[{"cvss_score":10,"headline":"Privilege escalation in n/a","id":"CVE-2017-10912","kev_date_added":null,"published":"2017-07-05"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2017-10918","kev_date_added":null,"published":"2017-07-05"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2017-10920","kev_date_added":null,"published":"2017-07-05"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2017-10921","kev_date_added":null,"published":"2017-07-05"},{"cvss_score":9.8,"headline":"Mutiple vulnerabilities in the Viridian interface","id":"CVE-2025-27466","kev_date_added":null,"published":"2025-09-11"},{"cvss_score":9.8,"headline":"Mutiple vulnerabilities in the Viridian interface","id":"CVE-2025-58142","kev_date_added":null,"published":"2025-09-11"},{"cvss_score":9.8,"headline":"Mutiple vulnerabilities in the Viridian interface","id":"CVE-2025-58143","kev_date_added":null,"published":"2025-09-11"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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":"partial"},"state":"PUBLISHED","updated":"2025-11-04","vendors":["Xen"]},"summary":"A flaw in Xen's x86 exception handling for emulated instructions causes fatal crashes instead of graceful recovery, leading to denial of service.","url":"https://insights.sbomify.com/CVE-2025-27465/"}