{"answers":{"affected":"It affects 1 product.","exploited":"Yes. Attackers have exploited CVE-2026-45498 in the wild since at least 20 May 2026.","fix":"No fix has been published for CVE-2026-45498 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 3 Jun 2026.","what":"CVE-2026-45498 is a medium-severity denial of service vulnerability in Microsoft Defender Antimalware Platform, published on 20 May 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-45498 and fix it if it is affected.\n\nWhat it is: CVE-2026-45498 is a medium-severity denial of service vulnerability in Microsoft Defender Antimalware Platform, published on 20 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2026-45498 in the wild since at least 20 May 2026.\n\nAffected product: Microsoft Defender Antimalware Platform. 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-2026-45498/ (Markdown: https://insights.sbomify.com/CVE-2026-45498/index.md)","id":"CVE-2026-45498","markdown":"https://insights.sbomify.com/CVE-2026-45498/index.md","name":"CVE-2026-45498","record":{"aliases":["GHSA-8gp3-pghr-6wxp"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Microsoft Defender Antimalware","requires_auth":"none","summary":"Attackers can cause a denial of service in Microsoft Defender Antimalware Platform, requiring users to apply vendor patches.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"defender_antimalware_platform","vendor":"microsoft"}],"cvss":{"score":4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"Microsoft Defender Denial of Service Vulnerability","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-07-02","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-07-02T11:42:54Z","kind":"github_poc","ref":"https://github.com/salihuahmad105-creator/Vulnerability-scanner","stars":0,"title":"DESIGN AND IMPLEMENTATION OF A VULNERABILITY SCANNER FOR CVE-2026-45498 IN MICROSOFT DEFENDER"}],"tier":"exploited"},"has_fix":null,"headline":"Microsoft Defender Denial of Service","id":"CVE-2026-45498","indexable":true,"kev":{"dateAdded":"2026-05-20","dueDate":"2026-06-03","knownRansomwareCampaignUse":"Unknown","product":"Defender","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","vendorProject":"Microsoft","vulnerabilityName":"Microsoft Defender Denial of Service Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Azure OpenAI Elevation of Privilege Vulnerability","id":"CVE-2026-45499"},"packages":[],"prev":{"headline":"Microsoft M365 Copilot Remote Code Execution Vulnerability","id":"CVE-2026-45497"},"products":["Microsoft Defender Antimalware Platform"],"published":"2026-05-20","related":[{"cvss_score":7.8,"headline":"Microsoft Defender Insufficient Granularity of Access Control","id":"CVE-2026-33825","kev_date_added":"2026-04-22","published":"2026-04-14"}],"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":"open","licence":"CC0 1.0","name":"CISA KEV"},{"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":"active","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-10","vendors":["Microsoft"]},"summary":"Attackers can cause a denial of service in Microsoft Defender Antimalware Platform, requiring users to apply vendor patches.","url":"https://insights.sbomify.com/CVE-2026-45498/"}