# RHSA-2025:21110: Security update for 10 packages

RHSA-2025:21110, released November 12, 2025, fixes 2 CVEs across 10 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2025-21110
- Platform: Linux
- Released: Nov 12, 2025
- Priority: High (Closes CVE-2025-40778, high severity)
- CVEs: 2, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2025:21110

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [bind](https://patchblox.com/security/data/product/linux/bind.md) | RHEL 9 | 32:9.16.23-34.el9_7.1 |
| [bind-chroot](https://patchblox.com/security/data/product/linux/bind-chroot.md) | RHEL 9 | 32:9.16.23-34.el9_7.1 |
| [bind-devel](https://patchblox.com/security/data/product/linux/bind-devel.md) | RHEL 9 | 32:9.16.23-34.el9_7.1 |
| [bind-dnssec-doc](https://patchblox.com/security/data/product/linux/bind-dnssec-doc.md) | RHEL 9 | 32:9.16.23-34.el9_7.1 |
| [bind-dnssec-utils](https://patchblox.com/security/data/product/linux/bind-dnssec-utils.md) | RHEL 9 | 32:9.16.23-34.el9_7.1 |
| [bind-doc](https://patchblox.com/security/data/product/linux/bind-doc.md) | RHEL 9 | 32:9.16.23-34.el9_7.1 |
| [bind-libs](https://patchblox.com/security/data/product/linux/bind-libs.md) | RHEL 9 | 32:9.16.23-34.el9_7.1 |
| [bind-license](https://patchblox.com/security/data/product/linux/bind-license.md) | RHEL 9 | 32:9.16.23-34.el9_7.1 |
| [bind-utils](https://patchblox.com/security/data/product/linux/bind-utils.md) | RHEL 9 | 32:9.16.23-34.el9_7.1 |
| [python3-bind](https://patchblox.com/security/data/product/linux/python3-bind.md) | RHEL 9 | 32:9.16.23-34.el9_7.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-40778](https://patchblox.com/security/data/cve/CVE-2025-40778.md) | High | Cache poisoning attacks with unsolicited RRs | 8.6 | 0.0067 |  |
| [CVE-2025-40780](https://patchblox.com/security/data/cve/CVE-2025-40780.md) | High | Cache poisoning due to weak PRNG | 8.6 | 0.0047 |  |

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Data as of 2026-11-07T12:40:37Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo