In a query response, an attacker may send `named` multiple copies of a record that should only exist once (such as an SOA record).
In a query response, an attacker may send `named` multiple copies of a record that should only exist once (such as an SOA record). If the RDATA is the same on all the copies, the record is appended to the in-memory RDATA set, which can cause increased memory usage of the negative cache and possibly lead to other memory attack vectors. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.
Read at NIST National Vulnerability Database (CVE API 2.0)
- Product
- BIND
- CVSS
- 5.3
- EPSS
- 0.005 (p41)
- Exposure class
- Edge / VPN / firewall
Why it ranks 21 (Routine)
- CVSS 5.3 medium
- Exposed product class: edge / VPN / firewall
- Covered by 2 independent sources
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- CVE-2026-75029 on this site · NVD · CVE.org · Vulnpedia
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