https://seclists.org/oss-sec/2026/q2/625: ISC has disclosed six vulnerabilities in BIND 9 (CVE-2026-3039, CVE-2026-3592, CVE-2026-3593, CVE-2026-5946, CVE-2026-5947, CVE-2026-5950)

Published May 20, 2026
·
Updated

Affected Software

1 affected component
Internet Systems Consortium BIND 9<9.18.49, <9.20.23, <9.21.22
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Frequently Asked Questions

1

What is the severity of CVE-2026-3039?

CVE-2026-3039 is classified as a medium-severity vulnerability due to its potential for memory exhaustion.

2

How do I fix CVE-2026-3039?

To fix CVE-2026-3039, upgrade to the latest version of BIND 9 that addresses this vulnerability.

3

What can happen if CVE-2026-3592 is exploited?

Exploitation of CVE-2026-3592 can result in a denial of service due to amplification attacks.

4

Are there workarounds for CVE-2026-3593?

There are no recommended workarounds for CVE-2026-3593; updating to a patched version is necessary.

5

What impact does CVE-2026-5950 have on BIND 9 installations?

CVE-2026-5950 may lead to unexpected behavior or service interruptions in BIND 9 installations.

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