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.
Metrics
Affected Vendors & Products
References
History
Wed, 20 May 2026 14:30:00 +0000
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| Metrics |
ssvc
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Wed, 20 May 2026 13:15:00 +0000
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| Description | 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. | |
| Title | Heap use-after-free vulnerability in BIND 9 DNS-over-HTTPS implementation | |
| First Time appeared |
Isc
Isc bind |
|
| Weaknesses | CWE-416 | |
| CPEs | cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Isc
Isc bind |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: isc
Published:
Updated: 2026-05-20T13:40:45.166Z
Reserved: 2026-03-05T12:57:16.981Z
Link: CVE-2026-3593
Updated: 2026-05-20T13:40:40.119Z
Status : Awaiting Analysis
Published: 2026-05-20T13:16:23.923
Modified: 2026-05-20T14:04:57.320
Link: CVE-2026-3593
No data.
OpenCVE Enrichment
Updated: 2026-05-20T15:15:06Z