CVE-2026-5950

medium Red Hat
CVSS v3 Base Score
5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS Score
0.1%
Exploitation probability in 30 days
Top 75% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Published: May 26, 2026 (44 days ago)
Last Modified: May 26, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in BIND 9. A remote, unauthenticated attacker can exploit an unbounded resend loop vulnerability in the resolver state machine during bad-server handling. By sending specially crafted queries that trigger specific retry conditions, the attacker can cause severe resource exhaustion, leading to a Denial of Service (DoS).

CWE

CWE-835

Affected Products

Red Hat Enterprise Linux 10Red Hat Enterprise Linux 6Red Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 9Red Hat Hardened ImagesRed Hat OpenShift Container Platform 4

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov