{"id":"CVE-2026-94056","title":"Exim before 4.100.1, when Proxy-Protocol is used with an attacker-controlled proxy, allows attackers to read certain uninitialized data from stack memory.","summary":"Exim before 4.100.1, when Proxy-Protocol is used with an attacker-controlled proxy, allows attackers to read certain uninitialized data from stack memory.","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:L","cwe":["CWE-908"],"vendor":"exim","product":"exim","affected":["exim < 4.100.1"],"patched":["exim 4.100.1"],"published":"2026-09-19","updated":"2026-09-24","sourceUpdated":"2026-09-24T20:45:30.120","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-94056","references":[{"url":"https://lists.exim.org/lurker/message/20260918.121220.0f87338e.en.html","label":"cve@mitre.org"}],"tags":["nvd","cve.org"],"epss":0.00238,"epssPercentile":0.14807,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-21T18:32:32.475747Z"},"ingestedAt":"2026-09-19T23:10:34.248Z","slug":"CVE-2026-94056","body":"## Overview\n\nExim before 4.100.1, when Proxy-Protocol is used with an attacker-controlled proxy, allows attackers to read certain uninitialized data from stack memory.\n\n## Affected\n\n- `exim < 4.100.1`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `exim 4.100.1`","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}