CVE-2026-11622 Affecting libdns1605 package, versions <9.16.6-150300.22.62.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.51% (41st percentile)

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  • Snyk IDSNYK-SLES157-LIBDNS1605-18674013
  • published12 Aug 2026
  • disclosed10 Aug 2026

Introduced: 10 Aug 2026

NewCVE-2026-11622  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 libdns1605 to version 9.16.6-150300.22.62.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libdns1605 package and not the libdns1605 package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

A DNSSEC validating resolver that is under a random subdomain attack against a DNSSEC-signed zone can suffer from runaway memory usage. The attacker needs to be able to send queries faster than the resolver can perform validation. The increased memory usage can be orders of magnitude beyond the limit configured in the max-cache-size parameter. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.

CVSS Base Scores

version 3.1