7.4 HighCWE-416
CVE-2026-3593
ISC BIND 9 vulnerability
ISCBIND 9
Status
- Not in CISA KEV
- Vendor fix available
Exploit probabilityEPSSchecked 25 Oct
1.1%probability of exploitation in the next 30 days
Higher than 65% of scored CVEs
SeverityCVSS
7.4High
Description NVD
A use-after-free vulnerability exists within the DNS-over-HTTPS implementation. This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1. BIND 9 versions 9.18.0 through 9.18.48 and 9.18.11-S1 through 9.18.48-S1 are NOT affected.
Coverage 1 article · 1 outlet
- BIND 9 flaws let attackers crash DNS and drain bandwidthSecurityOnline · first in our coverage · mentions it in passing