{"answers":{"affected":"It affects 1 product.","exploited":"Yes. Attackers have exploited CVE-2020-17144 in the wild since at least 3 Nov 2021.","fix":"No fix has been published for CVE-2020-17144 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 3 May 2022.","what":"CVE-2020-17144 is a high-severity unsafe deserialization vulnerability in Microsoft Exchange Server, published on 9 Dec 2020. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2020-17144 and fix it if it is affected.\n\nWhat it is: CVE-2020-17144 is a high-severity unsafe deserialization vulnerability in Microsoft Exchange Server, published on 9 Dec 2020. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.\nExploitation: Yes. Attackers have exploited CVE-2020-17144 in the wild since at least 3 Nov 2021.\n\nAffected product: Microsoft Exchange Server. 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-2020-17144/ (Markdown: https://insights.sbomify.com/CVE-2020-17144/index.md)","id":"CVE-2020-17144","markdown":"https://insights.sbomify.com/CVE-2020-17144/index.md","name":"CVE-2020-17144","record":{"aliases":["GHSA-68q4-hg7f-7p9c"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Microsoft Exchange Server","requires_auth":"high_privilege","summary":"Attackers can execute arbitrary code on Microsoft Exchange Server via a deserialization vulnerability, requiring immediate patching.","user_interaction":"required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"exchange_server","vendor":"microsoft"}],"cvss":{"score":8.4,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"Microsoft Exchange Remote Code Execution Vulnerability","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2020-12-09","github_poc":2,"max_poc_stars":158,"metasploit":0,"nuclei":0,"refs":[{"date":"2020-12-09T20:57:16Z","kind":"github_poc","ref":"https://github.com/zcgonvh/CVE-2020-17144","stars":158,"title":"weaponized tool for CVE-2020-17144"},{"date":"2020-12-09T10:30:16Z","kind":"github_poc","ref":"https://github.com/Airboi/CVE-2020-17144-EXP","stars":157,"title":"Exchange2010 authorized RCE"}],"tier":"exploited"},"has_fix":null,"headline":"Microsoft Exchange Server Remote Code Execution","id":"CVE-2020-17144","indexable":true,"kev":{"dateAdded":"2021-11-03","dueDate":"2022-05-03","knownRansomwareCampaignUse":"Unknown","product":"Exchange Server","requiredAction":"Apply updates per vendor instructions.","vendorProject":"Microsoft","vulnerabilityName":"Microsoft Exchange Server Remote Code Execution Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":"microsoft:exchange_server","products":["microsoft:exchange_server"],"type":"deserialization","year":"2020"},"n_packages":0,"n_references":1,"next":{"headline":"Azure DevOps Server and Team Foundation Services Spoofing Vulnerability","id":"CVE-2020-17145"},"packages":[],"prev":{"headline":"Microsoft Exchange Server Information Disclosure Vulnerability","id":"CVE-2020-17143"},"products":["Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 31"],"published":"2020-12-09","related":[{"cvss_score":9.8,"headline":"Microsoft Exchange Server Privilege Escalation","id":"CVE-2024-21410","kev_date_added":"2024-02-15","published":"2024-02-13"},{"cvss_score":9.1,"headline":"Microsoft Exchange Server Remote Code Execution","id":"CVE-2021-34473","kev_date_added":"2021-11-03","published":"2021-07-14"},{"cvss_score":9.1,"headline":"Microsoft Exchange Server Remote Code Execution","id":"CVE-2021-26855","kev_date_added":"2021-11-03","published":"2021-03-02"},{"cvss_score":9,"headline":"Microsoft Exchange Server Privilege Escalation","id":"CVE-2021-34523","kev_date_added":"2021-11-03","published":"2021-07-14"},{"cvss_score":8.8,"headline":"Microsoft Exchange Server Deserialization of Untrusted Data","id":"CVE-2023-21529","kev_date_added":"2026-04-13","published":"2023-02-14"},{"cvss_score":8.8,"headline":"Microsoft Exchange Server Privilege Escalation","id":"CVE-2022-41080","kev_date_added":"2023-01-10","published":"2022-11-09"},{"cvss_score":8.8,"headline":"Microsoft Exchange Server Server-Side Request Forgery","id":"CVE-2022-41040","kev_date_added":"2022-09-30","published":"2022-10-03"}],"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":"yes","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-06-09","vendors":["Microsoft"]},"summary":"Attackers can execute arbitrary code on Microsoft Exchange Server via a deserialization vulnerability, requiring immediate patching.","url":"https://insights.sbomify.com/CVE-2020-17144/"}