CVE-2026-94056
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Exim
PublishedSep 19, 2026
First seenSep 19, 2026
Weakness typeCWE-908CWE-908
How to fix
Update
- exim exim4.100.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| exim exim | v < 4.100.1 | 4.100.1 |
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