CVE-2026-62900: .NET Information Disclosure Vulnerability
Improper removal of sensitive information before storage or transfer in .NET allows an unauthorized attacker to disclose information over a network.
CSIRTS triage
- What
- Improper removal of sensitive information before storage or transfer exposes data.
- Who is affected
- Applications using .NET that transmit or store sensitive data.
- Urgency
- Medium severity (CVSS 5.9); not exploited but information disclosure risk requires patching.
- Action
- Apply the latest .NET security patch from Microsoft.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62900
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-629000.55% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 43% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-62900 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- high[NEW] [high] Microsoft Developer Tools: Multiple Vulnerabilitiescert-bund
- unknownMultiple vulnerabilities in Microsoft .Net (August 12, 2026)cert-fr-avis
- unknownMultiple vulnerabilities in Microsoft products (August 12, 2026)cert-fr-avis
- unknownNCSC-2026-0285 [1.00] [M/H] Vulnerabilities patched in Microsoft Developer Toolsncsc-nl
- mediumCVE-2026-62900: Improper removal of sensitive information before storage or transfer in .NET allows an unautho…nvd
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