CVE-2026-60108

High

Description

Zeek before 8.0.9 contains an uncontrolled memory consumption vulnerability in the FTP analyzer that allows unauthenticated remote attackers to cause process termination by sending a crafted FTP control session negotiating AUTH GSSAPI followed by a large ADAT control line. Attackers can exploit the NVT_Analyzer component's lack of a maximum line length check, causing it to continuously double its internal buffer without bounds during base64 decoding of an attacker-controlled ADAT token, resulting in denial of service of the Zeek sensor.

SeverityHigh
CVSS7.5
Exploit probability57. percentile0.8%
ProductZeek
PublishedJul 9, 2026
First seenJul 9, 2026

How to fix

Affected products

ProductAffected versionsFixed in
zeek zeekv < 8.0.98.0.9

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CVE-2026-60108 · Zeek · Dark Radar