CVE-2025-40780 Affecting libisc1606 package, versions <9.16.6-150300.22.53.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.46% (38th percentile)

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  • Snyk IDSNYK-SLES156-LIBISC1606-14003639
  • published15 Nov 2025
  • disclosed14 Nov 2025

Introduced: 14 Nov 2025

CVE-2025-40780  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 libisc1606 to version 9.16.6-150300.22.53.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libisc1606 package and not the libisc1606 package as distributed by SLES. See How to fix? for SLES:15.6 relevant fixed versions and status.

In specific circumstances, due to a weakness in the Pseudo Random Number Generator (PRNG) that is used, it is possible for an attacker to predict the source port and query ID that BIND will use. This issue affects BIND 9 versions 9.16.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.16.8-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1.

CVSS Base Scores

version 3.1