CVE-2026-94184
Medium
Description
A stack-based buffer overflow flaw was found in fetchmail when built with NTLM support. A malicious or compromised mail server advertising NTLM authentication can send a crafted Type 2 challenge that causes fetchmail to write past a fixed stack buffer while building the NTLM authenticate response. This may lead to remote code execution depending on stack-frame layout, or to authentication failure or process termination under memory hardening.
SeverityMedium
CVSS5.3
Exploit probability—
Product
Red Hat Enterprise Linux 10
PublishedSep 21, 2026
First seenSep 21, 2026
Weakness typeCWE-121CWE-121
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Red Hat Enterprise Linux 10 | No range specified | — |
| enterprise_linux 8 | No range specified | — |
| enterprise_linux 9 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 6 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 7 | No range specified | — |
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