Vulnerability Database · OSS-Fuzz · Package report
dnsmasq: vulnerability history, versions and safety
dnsmasq is a package in the OSS-Fuzz ecosystem. Vulert records 21 vulnerabilities for it across 78 releases, from Jul 2021 to Jan 2026. Each vulnerability names the versions it affects, the fixed version to move to, and a workaround where no fix has been published.
No patched version yet — these are the ones to plan around.
See the unfixed vulnerabilities →No published version shipped hostile code.
Vulert verdict on dnsmasq i
Updated on 23 Oct 2026
Careful: 3 of the 21 vulnerabilities Vulert records for this package have no fix yet. Plan around those, or apply the workaround listed for each. The rest have a fixed version to move to.
What to do: Plan around the 3 vulnerabilities with no published fix: each lists the affected range and any workaround that reduces exposure. No fix yet: Vulert alerts you the moment one is published. Monitor it with Vulert →
- Vulnerabilities on record 21 over 4 years · 1 in the last year i
- Latest disclosure 21 Jan 2026 i
- Highest CVSS n/a i
- With no published fix 3 i
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01 Versions
Which versions are affected
Every version Vulert holds for dnsmasq, newest first, with the vulnerabilities that name it. A version with a count of zero has no recorded vulnerabilities; open a version to see the vulnerabilities it is exposed to.
Newest 78 of 78 versions on record. Severity counts are the vulnerabilities recorded against that exact release.
02 Disclosure history
How often vulnerabilities are recorded
Counted by the year Vulert recorded each vulnerability — the same date the table below shows as disclosed. 1 of the 21 were recorded in the last 12 months.
Other ways into the data
03 Vulnerabilities
Recorded vulnerabilities for dnsmasq
| Vulnerability | Severity | Fixed version ↓ | Disclosed ↓ |
|---|---|---|---|
| Heap-use-after-free in dnsmasq: dhcp6_no_relay | N/A high | 03345ecefeb0d82e3c3a4c28f27c3554f0611b39 | 13 Feb 2022 |
| Heap-buffer-overflow in check_bad_address in dnsmasq | N/A high | d242cbffa4f20c9f7472f79b3a9e47008b6fe77c | 08 Jul 2021 |
| Stack-buffer-overflow in is_same_net6 - dnsmasq | N/A medium | a42ee397f3d48b5df837689c2c55aeaba5feaa01 | 08 Jul 2021 |
| Heap Buffer Overflow Vulnerability in dnsmasq | N/A medium | 1eab169173fc4c8579a3db61186096fe117e6aca | 21 Jan 2026 |
| Index-out-of-bounds in is_same_net6 in dnsmasq | N/A medium | No fix published | 26 Aug 2022 |
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Updated: 23/Oct/2026 · Vulnerabilities in our DB: 524315
