{"id":"CVE-2025-52691","title":"Successful exploitation of the vulnerability could allow an unauthenticated attacker to upload arbitrary files to any location on the mail server, potentially enabling remote code execution.","summary":"Successful exploitation of the vulnerability could allow an unauthenticated attacker to upload arbitrary files to any location on the mail server, potentially enabling remote code execution.","severity":"critical","cvss":10,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","cwe":["CWE-434"],"vendor":"smartertools","product":"smartermail","affected":["smartermail < 100.0.9413"],"patched":["smartermail 100.0.9413"],"published":"2025-12-29","updated":"2026-10-07","sourceUpdated":"2026-10-07T12:10:00.170","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-52691","references":[{"url":"https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2025-124/","label":"5f57b9bf-260d-4433-bf07-b6a79e9bb7d4"},{"url":"https://github.com/watchtowrlabs/watchTowr-vs-SmarterMail-CVE-2025-52691?ref=labs.watchtowr.com","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-52691","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","kev","in-the-wild","exploit-available"],"epss":0.85655,"epssPercentile":0.9972,"kev":true,"kevDateAdded":"2026-01-26","kevDueDate":"2026-02-16","kevRansomware":true,"exploited":true,"exploits":{"github":9,"githubRepos":["https://github.com/rxerium/CVE-2025-52691","https://github.com/watchtowrlabs/watchTowr-vs-SmarterMail-CVE-2025-52691","https://github.com/DeathShotXD/CVE-2025-52691-APT-PoC"],"metasploit":["exploit/multi/http/smartermail_guid_file_upload"],"nuclei":["CVE-2025-52691"],"checkedAt":"2026-10-07T12:29:35.595Z"},"exploitAvailable":true,"ingestedAt":"2026-10-07T12:29:01.325Z","slug":"CVE-2025-52691","body":"## Overview\n\nSuccessful exploitation of the vulnerability could allow an unauthenticated attacker to upload arbitrary files to any location on the mail server, potentially enabling remote code execution.\n\n## Affected\n\n- `smartermail < 100.0.9413`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `smartermail 100.0.9413`","depth":"hadal","depthScore":100,"depthScoreParts":{"impact":55,"likelihood":17.1,"exploitation":25,"ransomware":5},"changes":[]}