.NET: Local code execution via deserialization of untrusted data
Summary
.NET: Local code execution via deserialization of untrusted data. Red Hat rates this important (CVSS 7.8). Weakness: CWE-502. Red Hat lists fixing advisory RHSA-2026:27171 with package dotnet9-0-main-9.0.118-1.hum1.
What this means
In plain English
.NET: Local code execution via deserialization of untrusted data. Red Hat rates this important (CVSS 7.8). Weakness: CWE-502. Red Hat lists fixing advisory RHSA-2026:27171 with package dotnet9-0-main-9.0.118-1.hum1. Successful exploitation can let an attacker run code in the security context of the affected service or device.
Recommended action
Primary action: update to a vendor-listed fixed release: dotnet9-0-main-9.0.118-1.hum1, RHSA-2026:27171.
Rewritten locally from the scraped official advisory data above; no generative API is used. The vendor advisory is authoritative.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 3 hours ago·verify at source
- dotnet9-0-main-9.0.118-1.hum1
- RHSA-2026:27171
Official advisory · high-confidence parse· fetched 3 hours ago·verify at source
Mitigation
Upgrade to a fixed release: dotnet9-0-main-9.0.118-1.hum1, RHSA-2026:27171. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 3 hours ago·verify at source
Discussion(0)
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