CVE-2025-40778: Important · bind security update
Affects bind-docSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 8.6 High : upgrade to 32:9.18.33-4.el10_0.2 soon.
Data as of 7 Nov 2026, 17:19 UTC
- Patch
- Available – fixed in 32:9.18.33-4.el10_0.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 22 Oct 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 7 Nov 2026.
What to do
Upgrade the AlmaLinux to 32:9.18.33-4.el10_0.2.
Patches and advisories
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| AlmaLinux 10bind-doc | Affected
| Fixed in
|
| AlmaLinux 10bind-license | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A security update is available and should be applied promptly. Red Hat has released fixed packages for Red Hat Enterprise Linux 10, specifically version 9.18.33-4.el10_0.2 and later. Administrators should follow the instructions in the Red Hat advisory RHSA-2025:19912 to update affected systems. No additional mitigation steps are indicated beyond applying the official patch.
Description
BIND, a widely used DNS implementation, has a security update addressing multiple vulnerabilities including cache poisoning via unsolicited resource records (CVE-2025-40778), cache poisoning due to a weak pseudo-random number generator (CVE-2025-40780), and resource exhaustion through malformed DNSKEY handling (CVE-2025-8677). These issues could allow attackers to poison DNS caches or cause denial of service. The update fixes these vulnerabilities in Red Hat Enterprise Linux 10 and related distributions.
References
- access.redhat.com/errata/RHSA-2025:19912 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2025-40778 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2025-40780 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2025-8677 (opens in a new tab)
- bugzilla.redhat.com/2405827 (opens in a new tab)
- bugzilla.redhat.com/2405829 (opens in a new tab)
- bugzilla.redhat.com/2405830 (opens in a new tab)
- errata.almalinux.org/10/ALSA-2025-19912.html (opens in a new tab)