CVE-2026-40686
בינונית 5.3
תיאור (מקור, אנגלית)
In Exim before 4.99.2, when utf8 operators are enabled, there is an out-of-bounds read if large UTF-8 trailing characters are present (malformed UTF-8 header data). Information might be divulged within an error message produced during handling of an unrelated e-mail message.
מדדים
- CVSS 3.1
-
5.3 (MEDIUM)
מקור הציון: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - EPSS — סבירות ניצול
- 0% (אחוזון 000) נכון ל-30/7/2026
- CWE
- CWE-125
מוצרים מושפעים
exim: exim
קישורים
- https://exim.org/static/doc/security/cve-2026-04.1/CVE2026-40686.assessment Vendor Advisory
- https://code.exim.org/exim/exim/commit/f2570bde16fb4d4a1242ff363a4c4eecf6372efc Patch
- https://exim.org/static/doc/security/CVE-2026-40686.txt Broken Link
- https://www.openwall.com/lists/oss-security/2026/04/30/21 Mailing ListThird Party Advisory