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CVE-2025-40778VulnerabilityPublished Updated

Red Hat Security Advisory: bind security update

Affects Red Hat bindSource GCVE Database

0

Mentioned vulnerabilities

Authoritative record:CVE-2025-40778· High 8.6

Not known to be exploited · CVSS 8.6 High.

Data as of 26 Oct 2026, 09:15 UTC

CVSS 3.1 base score
8.6High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 51% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Oct 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
GitHubisc/bindpkg:github/isc/bindOther threatsAffected
  • >=9.11.0 <=9.16.50
  • 9.18.0 <=9.18.39
  • 9.20.0 <=9.20.13
  • 9.21.0 <=9.21.12
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Red Hat has released an important security update that fixes these vulnerabilities. Users should apply the updated BIND packages as described in the Red Hat advisory (https://access.redhat.com/articles/11258) to remediate these issues. No additional mitigation steps are indicated beyond applying the official update.

Description

Two security vulnerabilities affecting the Berkeley Internet Name Domain (BIND) implementation in Red Hat Enterprise Linux 9 have been addressed. These vulnerabilities include cache poisoning attacks via unsolicited resource records and cache poisoning due to a weak pseudo-random number generator. An important security update is available to fix these issues across multiple Red Hat Enterprise Linux 9 variants and related CodeReady Linux Builder products.

References

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