{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-20126 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2025-20126 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-20126 is a medium-severity vulnerability in Cisco ThousandEyes Endpoint Agent, published on 8 Jan 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-20126 and fix it if it is affected.\n\nWhat it is: CVE-2025-20126 is a medium-severity vulnerability in Cisco ThousandEyes Endpoint Agent, published on 8 Jan 2025. 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-2025-20126 in the wild and no public exploit code.\n\nAffected product: Cisco ThousandEyes Endpoint Agent. 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-2025-20126/ (Markdown: https://insights.sbomify.com/CVE-2025-20126/index.md)","id":"CVE-2025-20126","markdown":"https://insights.sbomify.com/CVE-2025-20126/index.md","name":"CVE-2025-20126","record":{"aliases":["GHSA-jwc2-hj9w-9cff"],"analysis":{"component_type":"desktop_application","fix_type":"patch","impacts":["data_read","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco ThousandEyes Endpoint Agent","requires_auth":"none","summary":"An on-path attacker can intercept or manipulate metrics data by bypassing certificate validation in the Cisco ThousandEyes Endpoint Agent.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"thousandeyes_endpoint_agent","vendor":"cisco"}],"cvss":{"score":4.8,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-295","name":"Improper Certificate Validation"}],"description":"A vulnerability in certification validation routines of Cisco ThousandEyes Endpoint Agent for macOS and RoomOS could allow an unauthenticated, remote attacker to intercept or manipulate metrics information.\r\n\r\nThis vulnerability exists because the affected software does not properly validate certificates for hosted metrics services. An on-path attacker could exploit this vulnerability by intercepting network traffic using a crafted certificate. A successful exploit could allow the attacker to masquerade as a trusted host and monitor or change communications between the remote metrics service and the vulnerable client.","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":"Cisco ThousandEyes Endpoint Agent Certificate Validation Vulnerability","id":"CVE-2025-20126","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2025"},"n_packages":0,"n_references":1,"next":{"headline":"A vulnerability in the TLS 1.3 implementation for a specific cipher for Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and","id":"CVE-2025-20127"},"packages":[],"prev":{"headline":"Cisco Identity Services Engine Insufficient Authorization Bypass Vulnerability","id":"CVE-2025-20125"},"products":["Cisco ThousandEyes Endpoint Agent"],"published":"2025-01-08","related":[{"cvss_score":5.3,"headline":"Cisco ThousandEyes Endpoint Agent for Windows Arbitrary File Write Vulnerability","id":"CVE-2025-20259","kev_date_added":null,"published":"2025-06-04"}],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-01-13","vendors":["Cisco"]},"summary":"An on-path attacker can intercept or manipulate metrics data by bypassing certificate validation in the Cisco ThousandEyes Endpoint Agent.","url":"https://insights.sbomify.com/CVE-2025-20126/"}