{"id":"CVE-2025-2767","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-2767","generatedAt":"2026-10-28T02:15:52.354Z","title":"Arista NG Firewall User-Agent Cross-Site Scripting Remote Code Execution Vulnerability.","description":"Arista NG Firewall User-Agent Cross-Site Scripting Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Arista NG Firewall. Minimal user interaction is required to exploit this vulnerability.\n\nThe specific flaw exists within the processing of the User-Agent HTTP header. The issue results from the lack of proper validation of user-supplied data, which can lead to the injection of an arbitrary script. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-24407.","published":"2025-04-23T17:16:55.000Z","lastModified":"2026-06-17T09:07:35.000Z","status":"Analyzed","sourceIdentifier":"zdi-disclosures@trendmicro.com","cvss":{"version":"3.1","score":9.6,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H"},"cwe":["CWE-79"],"affected":["arista/ng firewall"],"epss":{"score":0.00654,"percentile":0.51037,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.65%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://www.zerodayinitiative.com/advisories/ZDI-25-181/","tags":["Third Party Advisory"],"source":"zdi-disclosures@trendmicro.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-2767","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}