CVE-2026-40687

תיאור (מקור, אנגלית)

In Exim before 4.99.2, when the SPA authentication driver is used with an adversarial SPA resource, there can be an out-of-bounds write that crashes the connection instance, or erroneous data processing that divulges data from uninitialized heap memory.

מדדים

CVSS 3.1

9.1 (CRITICAL) מקור הציון: NVD CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

EPSS — סבירות ניצול

0% (אחוזון 000) נכון ל-30/7/2026

CWE

CWE-909

מוצרים מושפעים

exim: exim

קישורים

• https://exim.org/static/doc/security/cve-2026-04.1/CVE2026-40687.assessment Vendor Advisory
• https://code.exim.org/exim/exim/commit/68b963b9f75ca27b38e1c0f8c87037990199f505 Patch
• https://exim.org/static/doc/security/CVE-2026-40687.txt Broken Link
• https://www.openwall.com/lists/oss-security/2026/04/30/21 Mailing ListThird Party Advisory