CVE-2026-60108

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 v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/zeek/zeek/commit/93ff6950a90cfa9d00c1062cde429313a0402a01	Patch
https://github.com/zeek/zeek/releases/tag/v8.0.9	Release Notes
https://www.vulncheck.com/advisories/zeek-uncontrolled-memory-consumption-dos-via-ftp-analyzer	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:zeek:zeek:*:*:*:*:*:*:*:*

History

24 Oct 2026, 13:10

Type	Values Removed	Values Added
Summary		(es) Zeek anterior a la versión 8.0.9 contiene una vulnerabilidad de consumo de memoria incontrolado en el analizador FTP que permite a atacantes remotos no autenticados causar la terminación del proceso al enviar una sesión de control FTP manipulada que negocia AUTH GSSAPI seguida de una línea de control ADAT grande. Los atacantes pueden explotar la falta de una verificación de longitud máxima de línea del componente NVT_Analyzer, lo que hace que duplique continuamente su búfer interno sin límites durante la decodificación base64 de un token ADAT controlado por el atacante, lo que resulta en una denegación de servicio del sensor Zeek.

Information

Published : 2026-07-09 15:16

Updated : 2026-10-24 13:10

NVD link : CVE-2026-60108

Mitre link : CVE-2026-60108

CVE.ORG link : CVE-2026-60108

JSON object : View

Products Affected

zeek

zeek

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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