Vulnerability details

CVE-2026-60108

zeek zeek

Zeek < 8.0.9 Uncontrolled Memory Consumption DoS via FTP Analyzer

CVSS 4.0
8.7High

Official 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.

CVSS scores

ScoreVersionSourceVector
8.7High 4.0 CVEProject cvelistV5 (CNA) (VulnCheck) CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5High 3.1 CVEProject cvelistV5 (CNA) (VulnCheck) CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

VendorProductVersionsSource
zeek zeek v < 8.0.9 CVEProject cvelistV5 (CNA)

References and advisories

3
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Details

Published
2026-07-09
Last updated
2026-11-08
State
Published
Assigner (CNA)
VulnCheck

Exploit prediction (EPSS)

0.79%
Probability of exploitation in 30 days
56.5%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
Yes
Exploitation
None
Technical impact
Partial

Weaknesses (CWE)

  • CWE-770
    Allocation of Resources Without Limits or Throttling