CVE-2026-85790
MEDIUMDescription
Use after free in Microsoft QUIC allows an unauthorized attacker to disclose information over a network.
Is your site exposed to CVE-2026-85790?
Run a free security scan — no signup, results in seconds.
CVSS v3.1 Score
EPSS — Exploit Prediction
EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.
Weakness Type (CWE)
Affected Products
| Vendor | Product |
|---|---|
| microsoft | windows_11_23h2 |
| microsoft | windows_11_23h2 |
| microsoft | windows_11_24h2 |
| microsoft | windows_11_24h2 |
| microsoft | windows_11_25h2 |
| microsoft | windows_11_25h2 |
| microsoft | windows_11_26h1 |
| microsoft | windows_11_26h1 |
| microsoft | windows_11_26h2 |
| microsoft | windows_11_26h2 |
| microsoft | windows_server_2022 |
| microsoft | windows_server_2025 |
| microsoft | native.quic.msquic.schannel |
| microsoft | .net |
| microsoft | .net |
| microsoft | .net |
| microsoft | .net |
| microsoft | visual_studio_2022 |
| microsoft | visual_studio_2026 |
References
Advisories & Patches
Frequently Asked Questions
What is CVE-2026-85790? +
How severe is CVE-2026-85790? +
What products are affected by CVE-2026-85790? +
How do I check if I'm vulnerable to CVE-2026-85790? +
Related Vulnerabilities
Buffa is a pure-Rust Protocol Buffers implementation with first-class protobuf editions support. Prior to 0.7.0, a soundness bug in the …
A heap use-after-free existed when importing the blank-width characters of an ODF number format. A position value read from the …
rust-openssl is a set of OpenSSL bindings for the Rust programming language. In affected versions `ssl::select_next_proto` can return a slice …
XZ Utils provide a general-purpose data-compression library plus command-line tools. In XZ Utils 5.3.3alpha to 5.8.0, the multithreaded .xz decoder …
c-ares is an asynchronous resolver library. From 1.32.3 through 1.34.4, there is a use-after-free in read_answers() when process_answer() may re-enqueue …
There is an issue in CPython when using `bytes.decode("unicode_escape", error="ignore|replace")`. If you are not using the "unicode_escape" encoding or an …