Critical severity9.1NVD Advisory· Published May 11, 2021· Updated Jun 17, 2026
CVE-2021-29508
CVE-2021-29508
Description
Due to how Wire handles type information in its serialization format, malicious payloads can be passed to a deserializer. e.g. using a surrogate on the sender end, an attacker can pass information about a different type for the receiving end. And by doing so allowing the serializer to create any type on the deserializing end. This is the same issue that exists for .NET BinaryFormatter https://docs.microsoft.com/en-us/visualstudio/code-quality/ca2300?view=vs-2019. This also applies to the fork of Wire.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
WireNuGet | <= 1.0.0 | — |
Affected products
3- AsynkronIT/Wirev5Range: <= 1.0.0
Patches
Vulnerability mechanics
References
5- github.com/AsynkronIT/Wire/security/advisories/GHSA-hpw7-3vq3-mmv6nvdExploitThird Party AdvisoryWEB
- github.com/advisories/GHSA-hpw7-3vq3-mmv6ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-29508ghsaADVISORY
- www.nuget.org/packages/Wire/nvdThird Party Advisory
- www.nuget.org/packages/WireghsaWEB
News mentions
0No linked articles in our index yet.