{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-20399 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-20399 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-20399 is a high-severity vulnerability in Ibm Qradar Security Information and Event Manager, published on 27 Jul 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-20399 and fix it if it is affected.\n\nWhat it is: CVE-2021-20399 is a high-severity vulnerability in Ibm Qradar Security Information and Event Manager, published on 27 Jul 2021. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-20399 in the wild and no public exploit code.\n\nAffected product: Ibm Qradar Security Information and Event Manager. 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-2021-20399/ (Markdown: https://insights.sbomify.com/CVE-2021-20399/index.md)","id":"CVE-2021-20399","markdown":"https://insights.sbomify.com/CVE-2021-20399/index.md","name":"CVE-2021-20399","record":{"aliases":["GHSA-3gg6-gcfv-5r7j"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["data_read","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"IBM QRadar SIEM","requires_auth":"low_privilege","summary":"Remote attackers can exploit XML External Entity injection in IBM QRadar SIEM to expose sensitive information or cause memory exhaustion.","user_interaction":"not_required","vuln_class":"xxe"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"ibm","cpe":[{"product":"qradar_security_information_and_event_manager","vendor":"ibm"}],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:N/PR:L/C:H/UI:N/AC:L/S:U/I:N/A:L/RC:C/E:U/RL:O","version":"3.0"},"cwes":[{"id":"CWE-611","name":"Improper Restriction of XML External Entity Reference"}],"description":"IBM Qradar SIEM 7.3.0 to 7.3.3 Patch 8 and 7.4.0 to 7.4.3 GA is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 196073.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"XML external entity in QRadar SIEM","id":"CVE-2021-20399","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"ibm:qradar_security_information_and_event_manager","products":["ibm:qradar_security_information_and_event_manager"],"type":"xxe","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Weak cryptography in QRadar SIEM","id":"CVE-2021-20400"},"packages":[],"prev":{"headline":"Cross-site scripting in QRadar SIEM","id":"CVE-2021-20397"},"products":["QRadar SIEM"],"published":"2021-07-27","related":[{"cvss_score":9.4,"headline":"Auth bypass in QRadar SIEM","id":"CVE-2019-4210","kev_date_added":null,"published":"2019-04-08"},{"cvss_score":9.3,"headline":"Code injection in n/a","id":"CVE-2014-3062","kev_date_added":null,"published":"2014-09-27"},{"cvss_score":9.1,"headline":"IBM QRadar SIEM command execution","id":"CVE-2025-33117","kev_date_added":null,"published":"2025-06-19"},{"cvss_score":9.1,"headline":"Command injection in QRadar SIEM","id":"CVE-2020-4512","kev_date_added":null,"published":"2020-07-14"},{"cvss_score":9,"headline":"Command injection in n/a","id":"CVE-2015-2011","kev_date_added":null,"published":"2015-10-04"},{"cvss_score":9,"headline":"Command injection in n/a","id":"CVE-2015-2016","kev_date_added":null,"published":"2015-10-04"},{"cvss_score":9,"headline":"Command injection in n/a","id":"CVE-2015-4930","kev_date_added":null,"published":"2015-10-04"}],"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)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-17","vendors":["IBM"]},"summary":"Remote attackers can exploit XML External Entity injection in IBM QRadar SIEM to expose sensitive information or cause memory exhaustion.","url":"https://insights.sbomify.com/CVE-2021-20399/"}