CVE-2026-3592Amplification vulnerabilities via self-pointed glue records
Updated under an hour ago ()
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It affects ISC BIND 9 and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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BIND resolvers are vulnerable to an amplified resource consumption/exhaustion attack. If a victim resolver makes a query to a specially crafted zone, the resolver will consume disproportionate resources. This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.
- CVSS
- 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weakness (CWE)
- CWE-408
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- isc
- NVD analysis
- Analyzed
- Record last updated
- May 20, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
ISC BIND 9 isc:bind_9 (from the name) | from 9.11.0 through 9.16.50; from 9.18.0 through 9.18.48; from 9.20.0 through 9.20.22; from 9.21.0 through 9.21.21; from 9.11.3-S1 through 9.16.50-S1; from 9.18.11-S1 through 9.18.48-S1; from 9.20.9-S1 through 9.20.22-S1 | CNA record |
isc bind isc:bind | from 9.11.0 through 9.16.50; from 9.18.0 before 9.18.49; from 9.20.0 before 9.20.23; from 9.21.0 before 9.21.22 | NVD |
References
- https://kb.isc.org/docs/cve-2026-3592vendor-advisory
- https://downloads.isc.org/isc/bind9/9.18.49patch
- https://downloads.isc.org/isc/bind9/9.20.23patch
- https://downloads.isc.org/isc/bind9/9.21.22patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.