CVE-2026-11721 Cache poisoning possible with label count discrepancy, RRSIG, and wildcards
10
[
{
"vendor": "ISC",
"product": "BIND 9",
"versions": [
{
"version": "9.11.0",
"lessThanOrEqual": "9.18.50",
"status": "affected",
"versionType": "custom"
},
{
"version": "9.20.0",
"lessThanOrEqual": "9.20.24",
"status": "affected",
"versionType": "custom"
},
{
"version": "9.21.0",
"lessThanOrEqual": "9.21.23",
"status": "affected",
"versionType": "custom"
},
{
"version": "9.11.3-S1",
"lessThanOrEqual": "9.18.50-S1",
"status": "affected",
"versionType": "custom"
},
{
"version": "9.20.9-S1",
"lessThanOrEqual": "9.20.24-S1",
"status": "affected",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
}
]| Source | Link |
|---|---|
| downloads | www.downloads.isc.org/isc/bind9/9.20.26 |
| kb | www.kb.isc.org/docs/cve-2026-11721 |
| downloads | www.downloads.isc.org/isc/bind9/9.21.24 |
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22 Jul 2026 14:13Current
CVSS 3.17.5
EPSS0.00385