{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-3063 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-3063 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-3063 is a high-severity denial of service vulnerability in Paloaltonetworks Pan-Os, published on 10 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-3063 and fix it if it is affected.\n\nWhat it is: CVE-2021-3063 is a high-severity denial of service vulnerability in Paloaltonetworks Pan-Os, published on 10 Nov 2021. 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-2021-3063 in the wild and no public exploit code.\n\nAffected product: Paloaltonetworks Pan-Os. 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-2021-3063/ (Markdown: https://insights.sbomify.com/CVE-2021-3063/index.md)","id":"CVE-2021-3063","markdown":"https://insights.sbomify.com/CVE-2021-3063/index.md","name":"CVE-2021-3063","record":{"aliases":["GHSA-2h4v-5pj9-9hm9"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Palo Alto Networks PAN-OS","requires_auth":"none","summary":"Unauthenticated attackers can cause a denial of service by sending crafted traffic to GlobalProtect interfaces, restarting the device into maintenance mode.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"palo_alto","cpe":[{"product":"pan-os","vendor":"paloaltonetworks"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-755","name":"Improper Handling of Exceptional Conditions"}],"description":"An improper handling of exceptional conditions vulnerability exists in Palo Alto Networks GlobalProtect portal and gateway interfaces that enables an unauthenticated network-based attacker to send specifically crafted traffic to a GlobalProtect interface that causes the service to stop responding. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.21; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14-h4; PAN-OS 9.1 versions earlier than PAN-OS 9.1.11-h3; PAN-OS 10.0 versions earlier than PAN-OS 10.0.8-h4; PAN-OS 10.1 versions earlier than PAN-OS 10.1.3. Prisma Access customers are not impacted by this issue.","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":"PAN-OS: Denial-of-Service (DoS) Vulnerability in GlobalProtect Portal and Gateway Interfaces","id":"CVE-2021-3063","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"paloaltonetworks:pan-os","products":["paloaltonetworks:pan-os"],"type":"denial_of_service","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"PAN-OS: Memory Corruption Vulnerability in GlobalProtect Portal and Gateway Interfaces","id":"CVE-2021-3064"},"packages":[],"prev":{"headline":"PAN-OS: Improper Access Control Vulnerability Exposing AWS Instance Metadata Endpoint to GlobalProtect Users","id":"CVE-2021-3062"},"products":["PAN-OS","Prisma Access"],"published":"2021-11-10","related":[{"cvss_score":10,"headline":"Palo Alto Networks PAN-OS Command Injection","id":"CVE-2024-3400","kev_date_added":"2024-04-12","published":"2024-04-12"},{"cvss_score":10,"headline":"Palo Alto Networks PAN-OS Authentication Bypass","id":"CVE-2020-2021","kev_date_added":"2022-03-25","published":"2020-06-29"},{"cvss_score":9.8,"headline":"Palo Alto Networks PAN-OS Remote Code Execution","id":"CVE-2017-15944","kev_date_added":"2022-08-18","published":"2017-12-11"},{"cvss_score":9.3,"headline":"Palo Alto Networks PAN-OS Out-of-bounds Write","id":"CVE-2026-0300","kev_date_added":"2026-05-06","published":"2026-05-06"},{"cvss_score":9.3,"headline":"Palo Alto Networks PAN-OS Management Interface Authentication Bypass","id":"CVE-2024-0012","kev_date_added":"2024-11-18","published":"2024-11-18"},{"cvss_score":9.2,"headline":"PHP Memory Corruption","id":"CVE-2026-109618","kev_date_added":"2026-10-26","published":"2026-10-21"},{"cvss_score":9.2,"headline":"PHP Stale Internal Request-State","id":"CVE-2026-109619","kev_date_added":"2026-10-26","published":"2026-10-21"}],"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":"2024-09-16","vendors":["Palo Alto Networks"]},"summary":"Unauthenticated attackers can cause a denial of service by sending crafted traffic to GlobalProtect interfaces, restarting the device into maintenance mode.","url":"https://insights.sbomify.com/CVE-2021-3063/"}