CVE-2026-60108
HIGHZeek < 8.0.9 Uncontrolled Memory Consumption DoS via FTP Analyzer
Title source: cnaDescription
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.
References (3)
Core 3
Core References
Patch patch
Patch Commit
https://github.com/zeek/zeek/commit/93ff6950a90cfa9d00c1062cde429313a0402a01
Third Party Advisory third-party-advisory
https://www.vulncheck.com/advisories/zeek-uncontrolled-memory-consumption-dos-via-ftp-analyzer
Scores
CVSS v3
7.5
EPSS
0.0044
EPSS Percentile
35.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-770
Status
published
Products (1)
zeek/zeek
< 8.0.9 (2 CPE variants)
Published
Jul 09, 2026
Tracked Since
Jul 09, 2026