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CVE-2026-50649
high
CVSS 7.8
Deserialization of untrusted data in .NET allows an unauthorized attacker to execute code locally.
Summary
Deserialization of untrusted data in .NET allows an unauthorized attacker to execute code locally.
AI summary snake-internal / snake-template-v1
A weakness called CVE-2026-50649 was discovered in Microsoft Net Framework.
In plain terms, it is an unsafe deserialization flaw.
Severity is High (CVSS 7.8/10). If exploited, attackers can leak data or disrupt key functionality.
What you should do: update the affected software to the latest version. If unsure, ask your IT team or search the vendor's site for "Microsoft CVE-2026-50649".
CVE-2026-50649 (Microsoft Net Framework). Severity: High / CVSSv3 7.8. Category: CWE-502.
Response plan:
1. Check the vendor advisory for affected versions and the patched release.
2. If a vulnerable version is running in production, schedule maintenance (urgency from KEV/CVSS).
3. If no patch yet, mitigate via WAF rule, disabling the affected feature, etc.
4. Monitor logs / SIEM for known IOC and PoC signatures of this CVE.
PoCs and fix commits: see the 'References' section, MITRE, and NVD.
❓ What is the problem
A weakness (CVE-2026-50649) in Microsoft Net Framework. In plain words, it is an unsafe deserialization flaw.
📍 Affected scope
Target versions of Microsoft Net Framework (see vendor advisory). If running in production, identify exposure immediately.
🔥 Severity
Severity: High (CVSS 7.8/10). If exploited, attackers can leak data or disrupt key functionality.
🔧 How to fix
Update to the patched release as listed in the vendor advisory. (Typical mitigation pattern for CWE-502)
🛡️ Workaround
If a patch is not yet available, consider disabling the affected feature, applying WAF rules, blocking via network ACLs, or isolating the vulnerable version.
🔍 Detection
Check version information, scan dependencies via SBOM, and monitor SIEM for IOC and PoC signatures related to this CVE.
References
- patch [email protected]