CVE-2026-58641: CWE-190: Integer Overflow or Wraparound in Microsoft .NET 10.0
Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability involves an integer overflow or wraparound condition in Microsoft .NET 10.0. Exploitation of this flaw can enable a local attacker without privileges to elevate their privileges on the affected system. The issue is tracked as CWE-190 and has been assigned CVE-2026-58641. Microsoft has released an official fix to address this vulnerability.
Potential Impact
Successful exploitation of this vulnerability can lead to a complete compromise of system integrity by allowing unauthorized local privilege escalation. Confidentiality, integrity, and availability impacts are all rated high according to the CVSS vector.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the provided patch from Microsoft's security update guide to remediate this vulnerability. No additional mitigation steps are indicated beyond applying the official fix.
CVE-2026-58641: CWE-190: Integer Overflow or Wraparound in Microsoft .NET 10.0
Description
Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an integer overflow or wraparound condition in Microsoft .NET 10.0. Exploitation of this flaw can enable a local attacker without privileges to elevate their privileges on the affected system. The issue is tracked as CWE-190 and has been assigned CVE-2026-58641. Microsoft has released an official fix to address this vulnerability.
Potential Impact
Successful exploitation of this vulnerability can lead to a complete compromise of system integrity by allowing unauthorized local privilege escalation. Confidentiality, integrity, and availability impacts are all rated high according to the CVSS vector.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the provided patch from Microsoft's security update guide to remediate this vulnerability. No additional mitigation steps are indicated beyond applying the official fix.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-01T21:14:44.618Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58641","vendor":"Microsoft"}]
Threat ID: 6a7b57fabf8831d5391556e7
Added to database: 08/11/2026, 17:12:26 UTC
Last enriched: 08/11/2026, 23:12:12 UTC
Last updated: 08/12/2026, 00:12:09 UTC
Views: 3
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.