{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-45584 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-45584 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-45584 is a high-severity memory corruption vulnerability in Microsoft Malware Protection Engine, published on 20 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-45584 and fix it if it is affected.\n\nWhat it is: CVE-2026-45584 is a high-severity memory corruption vulnerability in Microsoft Malware Protection Engine, published on 20 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-45584 in the wild and no public exploit code.\n\nAffected product: Microsoft Malware Protection Engine. 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-2026-45584/ (Markdown: https://insights.sbomify.com/CVE-2026-45584/index.md)","id":"CVE-2026-45584","markdown":"https://insights.sbomify.com/CVE-2026-45584/index.md","name":"CVE-2026-45584","record":{"aliases":["GHSA-f7rp-9ghh-f4gm"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Microsoft Malware Protection Engine","requires_auth":"none","summary":"An unauthorized attacker can execute arbitrary code remotely via a heap-based buffer overflow in the Microsoft Malware Protection Engine.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"malware_protection_engine","vendor":"microsoft"}],"cvss":{"score":8.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-122","name":"Heap-based Buffer Overflow"}],"description":"Heap-based buffer overflow in Microsoft Defender allows an unauthorized attacker to execute code over a network.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-05-22","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-05-22T11:04:08Z","kind":"github_poc","ref":"https://github.com/96613686/CVE-2026-45584","stars":0,"title":null}],"tier":"poc_unverified"},"has_fix":null,"headline":"Microsoft Defender Remote Code Execution Vulnerability","id":"CVE-2026-45584","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Windows BitLocker Security Feature Bypass Vulnerability","id":"CVE-2026-45585"},"packages":[],"prev":{"headline":"Microsoft Exchange Server Remote Code Execution Vulnerability","id":"CVE-2026-45583"},"products":["Microsoft Malware Protection Engine"],"published":"2026-05-20","related":[{"cvss_score":7.8,"headline":"Microsoft Defender Link Following","id":"CVE-2026-41091","kev_date_added":"2026-05-20","published":"2026-05-20"},{"cvss_score":9.3,"headline":"Memory corruption in n/a","id":"CVE-2013-1346","kev_date_added":null,"published":"2013-05-15"},{"cvss_score":7.8,"headline":"Microsoft Defender Elevation of Privilege Vulnerability","id":"CVE-2026-69414","kev_date_added":null,"published":"2026-08-14"},{"cvss_score":7.8,"headline":"Microsoft Defender Remote Code Execution Vulnerability","id":"CVE-2026-55011","kev_date_added":null,"published":"2026-07-14"},{"cvss_score":7.8,"headline":"Microsoft Defender Remote Code Execution Vulnerability","id":"CVE-2026-55012","kev_date_added":null,"published":"2026-07-14"},{"cvss_score":7.8,"headline":"Microsoft Defender Elevation of Privilege Vulnerability","id":"CVE-2026-50656","kev_date_added":null,"published":"2026-06-16"}],"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 unauthorized attacker can execute arbitrary code remotely via a heap-based buffer overflow in the Microsoft Malware Protection Engine.","url":"https://insights.sbomify.com/CVE-2026-45584/"}