CVE-2026-62898
Microsoft QUIC Information Disclosure Vulnerability
HIGH
7.5
CVSS Score
Published: August 11, 2026 at 05:07 PM UTC
Updated: October 21, 2026 at 08:54 PM UTC
3 products affected across 1 vendorVisual Studio 2022.netVisual Studio 2026
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Severity
HIGH7.5
Exploit prediction
EPSS 1%
SSVC
No known exploit
Description
Use after free in Microsoft QUIC allows an unauthorized attacker to disclose information over a network.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Affected range stops below 10.0.11, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.0.30, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.0.19, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.14.38, so it looks safe — our inference, not a vendor statement
Affected range stops below 18.8.3, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
Vendor AdvisoryPatch
Source: cverecord
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62898SSVC — Action Prioritization
SSVCNo known exploitAutomatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- NONE
- Availability
- NONE
Vector?
Quick Info
StatusANALYZED
CWE
CWE-416
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