CVE-2026-40686
Low · 3.7CVSS
3.7
EPSS
0.4%
Published
Apr 30, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
Related vulnerabilities
- CVE-2026-92824 A flaw was found in libmodulemd. CWE-125
- CVE-2026-114038 A flaw was found in device-mapper-multipath. CWE-125
- CVE-2026-112896 Pillow is a Python imaging library. CWE-125
- CVE-2026-112278 rdesktop through 1.9.0 contains a heap out-of-bounds read vulnerability in… CWE-125
- CVE-2026-112273 libtins through 4.6 contains a heap out-of-bounds read vulnerability in DNS::compose_name… CWE-125
- CVE-2026-112073 A vulnerability was identified in Tencent ncnn up to 44b02dabdcf97499281a4692ebd65bad73dc… CWE-125
- CVE-2026-112020 LodePNG through 20261006 contains a heap out-of-bounds read vulnerability in… CWE-125
- CVE-2026-88842 A flaw was found in BusyBox dpkg. CWE-125