CVE-2026-94184
⚠️ highSummary
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. Affects v5.0.8 through v6.6.6.
CVSS Score
8.1
High
EPSS Score
1.2
Exploit Probability
Published Date
2026-09-21
First Seen: 2026-09-24
📊 Relative Risk Intelligence
This CVE is High Risk - more severe than 76.7% of all 361,628 vulnerabilities in our database.
#84,378
Top 25% most severe
Severity Percentile
🎯 CISA SSVC Assessment Updated: Sep 22, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
NO
Requires human interaction
💥 Technical Impact
Total
Complete system compromise possible
🏆 Discovered By
Upstream acknowledges Tristan Madani as the original reporter.
SSVC data provided by
CISA
Last Modified
2026-09-23
Source
NVD 🔗
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE IDs (Weakness Types)