CVE-2026-94300
Fixed in a distro release EPSS <1%CVSS 8.1
Replaying GSS-TSIG signed UDP messages can result in memory corruption in "`named`". An attacker who can capture a previously signed UDP message can replay it while the negotiated TSIG key is still valid. By also sending crafted queries to a zone the attacker controls, the attacker may potentially achieve remote code execution. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.29, 9.21.0 through 9.21.26, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.29-S1.
Products: ISC BIND 9
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Alpine:v3.22 | bind | 9.20.30-r0 |
| Alpine:v3.23 | bind | 9.20.30-r0 |
| Alpine:v3.24 | bind | 9.20.30-r0 |
| Debian:12 | bind9 | no fix |
| Debian:13 | bind9 | 1:9.20.30-1~deb13u1 |
| Debian:14 | bind9 | 1:9.20.30-1 |
| Ubuntu:18.04:LTS | isc-dhcp | no fix |
| Ubuntu:20.04:LTS | bind9-libs | no fix |
| Ubuntu:22.04:LTS | bind9 | no fix |
| Ubuntu:22.04:LTS | bind9-libs | no fix |
| Ubuntu:24.04:LTS | bind9 | no fix |
| Ubuntu:24.04:LTS | isc-dhcp | no fix |
| Ubuntu:26.04:LTS | bind9 | no fix |
| Ubuntu:26.04:LTS | isc-dhcp | no fix |
| Ubuntu:26.10 | bind9 | no fix |
| Ubuntu:Pro:18.04:LTS | bind9 | no fix |
| Ubuntu:Pro:20.04:LTS | bind9 | no fix |
| openSUSE:Tumbleweed | bind | 9.20.30-1.1 |