CVE-2026-3592

MEDIUM

BIND 9.11.0-9.16.50, 9.18.0-9.18.48, 9.20.0-9.20.22, 9.21.0-9.21.21 - Resource Exhaustion via Crafted Zone Query

Title source: llm
STIX 2.1

Description

BIND resolvers are vulnerable to an amplified resource consumption/exhaustion attack. If a victim resolver makes a query to a specially crafted zone, the resolver will consume disproportionate resources. This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.

References (4)

Core 4

Scores

CVSS v3 5.3
EPSS 0.0002
EPSS Percentile 3.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-408
Status published
Products (8)
isc/bind 9.11.0 - 9.16.50
ISC/BIND 9 9.11.0 - 9.16.50
ISC/BIND 9 9.11.3-S1 - 9.16.50-S1
ISC/BIND 9 9.18.0 - 9.18.48
ISC/BIND 9 9.18.11-S1 - 9.18.48-S1
ISC/BIND 9 9.20.0 - 9.20.22
ISC/BIND 9 9.20.9-S1 - 9.20.22-S1
ISC/BIND 9 9.21.0 - 9.21.21
Published May 20, 2026
Tracked Since May 20, 2026