# Hickory-Dns Hickory DNS vulnerabilities Source: https://junglewise.ai/threats/technologies/hickory-dns Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/hickory-dns.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 4 vulnerabilities in Hickory-Dns Hickory DNS: 4 in the last 7 days and 4 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-123577, was published on 8 November 2026. 4 vulnerabilities in the last four weeks, up from none in the four before. ## Counts - Last 7 days: 4 - Last 30 days: 4 - Last 90 days: 4 - All time: 4 (0 critical, 0 exploited in the wild) ## About Hickory-Dns Hickory DNS DNS resolver library written in Rust supporting recursive and stub resolver functionality. ## Latest Hickory-Dns Hickory DNS vulnerabilities - [CVE-2026-123577: Hickory DNS resource exhaustion in DoH request buffering](https://junglewise.ai/threats/cve-2026-123577-hickory-dns-from-0-24-0-before-0-26-2-contains-a-resource) (high, CVSS 7.5, published 8 Nov 2026) - [CVE-2026-123576: Hickory DNS memory exhaustion in DNS-over-QUIC](https://junglewise.ai/threats/cve-2026-123576-hickory-dns-0-24-0-through-0-26-1-contains-a-memory-exhaustion) (high, CVSS 7.5, published 8 Nov 2026) - [CVE-2026-123575: Hickory DNS resource exhaustion in DNS-over-HTTPS server](https://junglewise.ai/threats/cve-2026-123575-hickory-dns-before-0-26-2-contains-a-resource-exhaustion) (high, CVSS 7.5, published 8 Nov 2026) - [CVE-2026-123571: Hickory DNS integer underflow in TSIG RDATA decoding](https://junglewise.ai/threats/cve-2026-123571-hickory-dns-from-0-26-0-before-0-26-2-contains-an-integer) (high, CVSS 7.5, published 8 Nov 2026) ## Most severe Hickory-Dns Hickory DNS vulnerabilities - [CVE-2026-123577: Hickory DNS resource exhaustion in DoH request buffering](https://junglewise.ai/threats/cve-2026-123577-hickory-dns-from-0-24-0-before-0-26-2-contains-a-resource) (high, CVSS 7.5, published 8 Nov 2026) - [CVE-2026-123576: Hickory DNS memory exhaustion in DNS-over-QUIC](https://junglewise.ai/threats/cve-2026-123576-hickory-dns-0-24-0-through-0-26-1-contains-a-memory-exhaustion) (high, CVSS 7.5, published 8 Nov 2026) - [CVE-2026-123575: Hickory DNS resource exhaustion in DNS-over-HTTPS server](https://junglewise.ai/threats/cve-2026-123575-hickory-dns-before-0-26-2-contains-a-resource-exhaustion) (high, CVSS 7.5, published 8 Nov 2026) - [CVE-2026-123571: Hickory DNS integer underflow in TSIG RDATA decoding](https://junglewise.ai/threats/cve-2026-123571-hickory-dns-from-0-26-0-before-0-26-2-contains-an-integer) (high, CVSS 7.5, published 8 Nov 2026) ## Vulnerabilities per week 4 vulnerabilities in the last four weeks, up from none in the four before. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 4 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other Hickory-Dns technologies - [Hickory-Dns Hickory-Proto](https://junglewise.ai/threats/technologies/hickory-dns-hickory-proto): 18 vulnerabilities - [Hickory-Dns Hickory-Net](https://junglewise.ai/threats/technologies/hickory-dns-hickory-net): 14 vulnerabilities - [Hickory-Dns Hickory-Resolver](https://junglewise.ai/threats/technologies/hickory-resolver): 10 vulnerabilities - [Hickory-Dns Hickory-Recursor](https://junglewise.ai/threats/technologies/hickory-dns-hickory-recursor): 5 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Hickory-Dns Hickory DNS vulnerabilities", https://junglewise.ai/threats/technologies/hickory-dns, 9 November 2026.