{"answers":{"affected":"It affects 7 products.","exploited":"There is no known exploitation of CVE-2025-27740 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2025-27740 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-27740 is a high-severity vulnerability in Microsoft Windows Server 2008, published on 8 Apr 2025. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-27740 and fix it if it is affected.\n\nWhat it is: CVE-2025-27740 is a high-severity vulnerability in Microsoft Windows Server 2008, published on 8 Apr 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-2025-27740 in the wild and no public exploit code.\n\nAffected product: Microsoft Windows Server 2008. 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-2025-27740/ (Markdown: https://insights.sbomify.com/CVE-2025-27740/index.md)","id":"CVE-2025-27740","markdown":"https://insights.sbomify.com/CVE-2025-27740/index.md","name":"CVE-2025-27740","record":{"aliases":["GHSA-w4rq-mvcf-xc7h"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Windows Server AD CS","requires_auth":"low_privilege","summary":"An authorized attacker can elevate privileges over the network due to weak authentication in Windows Active Directory Certificate Services.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"windows_server_2008","vendor":"microsoft"},{"product":"windows_server_2012","vendor":"microsoft"},{"product":"windows_server_2016","vendor":"microsoft"},{"product":"windows_server_2019","vendor":"microsoft"},{"product":"windows_server_2022","vendor":"microsoft"},{"product":"windows_server_2022_23h2","vendor":"microsoft"},{"product":"windows_server_2025","vendor":"microsoft"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-1390","name":"Weak Authentication"}],"description":"Weak authentication in Windows Active Directory Certificate Services allows an authorized attacker to elevate privileges over a network.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-10-27","github_poc":2,"max_poc_stars":1,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-10-27T02:14:29Z","kind":"github_poc","ref":"https://github.com/Dannners/CVE-2025-27740_POC","stars":1,"title":"CVE-2025-27740 — AD CS Subject Key Identifier Injection"},{"date":"2026-10-28T10:09:52Z","kind":"github_poc","ref":"https://github.com/tyie949/cve-2025-27740","stars":0,"title":"Proof-of-concept exploit for CVE-2025-27740  Subject Key Identifier injection in Active Directory Certificate Services"}],"tier":"poc_unverified"},"has_fix":null,"headline":"Active Directory Certificate Services Elevation of Privilege Vulnerability","id":"CVE-2025-27740","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"microsoft:windows_server_2008","products":["microsoft:windows_server_2008","microsoft:windows_server_2012","microsoft:windows_server_2016","microsoft:windows_server_2019","microsoft:windows_server_2022","microsoft:windows_server_2022_23h2","microsoft:windows_server_2025"],"type":"privilege_escalation","year":"2025"},"n_packages":0,"n_references":1,"next":{"headline":"NTFS Elevation of Privilege Vulnerability","id":"CVE-2025-27741"},"packages":[],"prev":{"headline":"Windows Kernel Elevation of Privilege Vulnerability","id":"CVE-2025-27739"},"products":["Windows Server 2008 R2 Service Pack 1","Windows Server 2008 R2 Service Pack 1 (Server Core installation)","Windows Server 2008 Service Pack 2","Windows Server 2008 Service Pack 2 (Server Core installation)","Windows Server 2012","Windows Server 2012 (Server Core installation)","Windows Server 2012 R2","Windows Server 2012 R2 (Server Core installation)","Windows Server 2016","Windows Server 2016 (Server Core installation)","Windows Server 2019","Windows Server 2019 (Server Core installation)","Windows Server 2022","Windows Server 2022, 23H2 Edition (Server Core installation)","Windows Server 2025","Windows Server 2025 (Server Core installation)"],"published":"2025-04-08","related":[{"cvss_score":10,"headline":"Microsoft Windows DNS Server Remote Code Execution","id":"CVE-2020-1350","kev_date_added":"2021-11-03","published":"2020-07-14"},{"cvss_score":9,"headline":"Microsoft Hyper-V RemoteFX vGPU Remote Code Execution","id":"CVE-2020-1040","kev_date_added":"2021-11-03","published":"2020-07-14"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2011-1966","kev_date_added":null,"published":"2011-08-10"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2010-0239","kev_date_added":null,"published":"2010-02-10"},{"cvss_score":10,"headline":"Code injection in n/a","id":"CVE-2010-0240","kev_date_added":null,"published":"2010-02-10"},{"cvss_score":10,"headline":"Code injection in n/a","id":"CVE-2010-0241","kev_date_added":null,"published":"2010-02-10"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2009-2505","kev_date_added":null,"published":"2009-12-09"}],"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":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-08-10","vendors":["Microsoft"]},"summary":"An authorized attacker can elevate privileges over the network due to weak authentication in Windows Active Directory Certificate Services.","url":"https://insights.sbomify.com/CVE-2025-27740/"}