VDB
CVE-2026-3104
CVE-2026-3104
PUBLISHED
CVSS 7.5 HIGH
CVE-2026-3104: Memory Leak (High) A specially crafted domain causes a memory leak in BIND resolvers through the DNSSEC proof-of-non-existence code. Memory is never freed, leading to out-of-memory conditions. Affects BIND 9.20.0 -> 9.20.20 and 9.21.0 -> 9.21.19. No workarounds known. CVE-2026-1519: CPU Exhaustion (High) Maliciously crafted zones with excessive NSEC3 iterations cause high CPU load during DNSSEC validation. Affects BIND 9.11.0 through 9.21.19 across all branches. Workaround: disabling DNSSEC validation prevents exploitation but is not recommended: (dnssec-validation no;).
EPSS 0.05% · 16.7th percentile
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.05%
16.7th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| ISC | ISC BIND 9 |
Exploit Intelligence
- https://downloads.isc.org/isc/bind9/9.18.47 (circl)
- CVE-2026-1519 (circl)
- CIRCL seen: CVE-2026-1519 (circl-sighting)
- CIRCL seen: CVE-2026-1519 (circl-sighting)
- CIRCL seen: CVE-2026-3104 (circl-sighting)
- CIRCL seen: CVE-2026-3104 (circl-sighting)
- CIRCL seen: CVE-2026-3104 (circl-sighting)
- CIRCL seen: CVE-2026-3104 (circl-sighting)
- CIRCL seen: CVE-2026-3104 (circl-sighting)
- CIRCL seen: CVE-2026-3104 (circl-sighting)
…and 14 more exploits
Timeline
- Mar 25, 2026 Coalition ESS Score
- Mar 25, 2026 CVE Published
- Mar 25, 2026 CVE Updated
- Mar 25, 2026 PoC Published
- Mar 25, 2026 PoC Published
- Mar 25, 2026 PoC Published
- Mar 25, 2026 PoC Published
- Mar 25, 2026 PoC Published
- Mar 25, 2026 PoC Published
- Mar 26, 2026 PoC Published
- Mar 26, 2026 PoC Published
- Mar 26, 2026 PoC Published