CVE-2026-62898
HighCVSS 7.5Exploitation Probability (EPSS)
Elevated risk64th percentile - higher than 64% of all known CVEs
Summary
Use after free in Microsoft QUIC allows an unauthorized attacker to disclose information over a network.
Risk Assessment
An attacker could access sensitive data transmitted over the network, potentially leading to information leakage.
Recommendation
Install security updates for Microsoft QUIC and monitor network traffic.
Other vulnerabilities in Microsoft QUIC
See all- CVE-2026-105016Critical
Heap-based buffer overflow in Microsoft QUIC allows an unauthorized attacker to execute code over a network.
- CVE-2026-100219Critical
Use after free in Microsoft QUIC allows an unauthorized attacker to execute code over a network.
- CVE-2026-62815Critical
A use-after-free vulnerability in Microsoft QUIC allows an unauthorized attacker to execute code over a network.
Original NVD description (English source)
Use after free in Microsoft QUIC allows an unauthorized attacker to disclose information over a network.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS