CVE-2023-49441 — dnsmasq 2

dnsmasq 2.9 is vulnerable to Integer Overflow via forward_query.

01What is this vulnerability?

dnsmasq 2.9 is vulnerable to Integer Overflow via forward_query.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-06-06T21:20:59.871Z
• Last modified: 2025-03-14T15:19:01.559Z

09References

• lists.thekelleys.org.uk — https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2023q4/017332.html
• thekelleys.org.uk — https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=65c2d6afd67a032f4…