# Dnsmasq vulnerabilities

Source: https://junglewise.ai/threats/vendors/dnsmasq  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/vendors/dnsmasq.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 7 vulnerabilities in Dnsmasq: 0 in the last 7 days and 2 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-93010, was published on 29 October 2026. 2 vulnerabilities in the last four weeks, up from none in the four before.

## Counts

- Last 7 days: 0
- Last 30 days: 2
- Last 90 days: 2
- All time: 7 (0 critical, 0 exploited in the wild)

## About Dnsmasq

Open source DNS and TFTP server software.

## Latest Dnsmasq vulnerabilities

- [CVE-2026-93010: dnsmasq DHCP leasequery missing authorization](https://junglewise.ai/threats/cve-2026-93010-a-flaw-was-found-in-dnsmasq-when-dhcp-leasequery-is-enabled) (medium, CVSS 4.3, published 29 Oct 2026)
- [CVE-2026-93006: dnsmasq TFTP cache confusion serves wrong file](https://junglewise.ai/threats/cve-2026-93006-a-flaw-was-found-in-dnsmasq-the-tftp-server-can-serve-the-wrong) (medium, CVSS 6.8, published 29 Oct 2026)
- [CVE-2026-5172: dnsmasq heap out-of-bounds read in extract_addresses](https://junglewise.ai/threats/cve-2026-5172-dnsmasq-heap-out-of-bounds-read-in-extract-addresses) (high, CVSS 7.3, published 11 May 2026)
- [CVE-2026-4892: dnsmasq heap overflow in DHCPv6 helper](https://junglewise.ai/threats/cve-2026-4892-dnsmasq-heap-overflow-in-dhcpv6-helper) (high, CVSS 8.4, published 11 May 2026)
- [CVE-2026-4891: dnsmasq heap out-of-bounds read in DNSSEC validation](https://junglewise.ai/threats/cve-2026-4891-dnsmasq-heap-out-of-bounds-read-in-dnssec-validation) (medium, CVSS 5.3, published 11 May 2026)
- [CVE-2026-4890: dnsmasq infinite loop in DNSSEC NSEC parsing](https://junglewise.ai/threats/cve-2026-4890-dnsmasq-infinite-loop-in-dnssec-nsec-parsing) (high, CVSS 7.5, published 11 May 2026)
- [CVE-2026-2291: dnsmasq heap buffer overflow in extract_name](https://junglewise.ai/threats/cve-2026-2291-dnsmasq-heap-buffer-overflow-in-extract-name) (high, CVSS 7.3, published 11 May 2026)

## Most severe Dnsmasq vulnerabilities

- [CVE-2026-4892: dnsmasq heap overflow in DHCPv6 helper](https://junglewise.ai/threats/cve-2026-4892-dnsmasq-heap-overflow-in-dhcpv6-helper) (high, CVSS 8.4, published 11 May 2026)
- [CVE-2026-4890: dnsmasq infinite loop in DNSSEC NSEC parsing](https://junglewise.ai/threats/cve-2026-4890-dnsmasq-infinite-loop-in-dnssec-nsec-parsing) (high, CVSS 7.5, published 11 May 2026)
- [CVE-2026-2291: dnsmasq heap buffer overflow in extract_name](https://junglewise.ai/threats/cve-2026-2291-dnsmasq-heap-buffer-overflow-in-extract-name) (high, CVSS 7.3, published 11 May 2026)
- [CVE-2026-5172: dnsmasq heap out-of-bounds read in extract_addresses](https://junglewise.ai/threats/cve-2026-5172-dnsmasq-heap-out-of-bounds-read-in-extract-addresses) (high, CVSS 7.3, published 11 May 2026)
- [CVE-2026-93006: dnsmasq TFTP cache confusion serves wrong file](https://junglewise.ai/threats/cve-2026-93006-a-flaw-was-found-in-dnsmasq-the-tftp-server-can-serve-the-wrong) (medium, CVSS 6.8, published 29 Oct 2026)
- [CVE-2026-4891: dnsmasq heap out-of-bounds read in DNSSEC validation](https://junglewise.ai/threats/cve-2026-4891-dnsmasq-heap-out-of-bounds-read-in-dnssec-validation) (medium, CVSS 5.3, published 11 May 2026)
- [CVE-2026-93010: dnsmasq DHCP leasequery missing authorization](https://junglewise.ai/threats/cve-2026-93010-a-flaw-was-found-in-dnsmasq-when-dhcp-leasequery-is-enabled) (medium, CVSS 4.3, published 29 Oct 2026)

## Vulnerabilities per week

2 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 | 2 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## 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, "Dnsmasq vulnerabilities", https://junglewise.ai/threats/vendors/dnsmasq, 9 November 2026.