CVE-2026-85790CWE-416

CVE-2026-85790

Medium · published October 13, 2026

CVSS v3.1
5.9
EPSS
1%
Percentile
52.2
In the wild
Unconfirmed
What it is

Use after free in Microsoft QUIC allows an unauthorized attacker to disclose information over a network.

The record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00690 · 52.2th percentile
Weakness
CWE-416 · Use After Free
Published
2026-10-13T23:21Z
Affected products (15)
ProductVersionsFixed in
microsoft/windows_11_23h2< 10.0.22631.765210.0.22631.7652
microsoft/windows_11_23h2< 10.0.22631.765210.0.22631.7652
microsoft/windows_11_24h2< 10.0.26100.971110.0.26100.9711
microsoft/windows_11_24h2< 10.0.26100.971110.0.26100.9711
microsoft/windows_11_25h2< 10.0.26200.971110.0.26200.9711
microsoft/windows_11_25h2< 10.0.26200.971110.0.26200.9711
microsoft/windows_11_26h1< 10.0.28000.323110.0.28000.3231
microsoft/windows_11_26h1< 10.0.28000.323110.0.28000.3231
microsoft/windows_11_26h2< 10.0.26300.971110.0.26300.9711
microsoft/windows_11_26h2< 10.0.26300.971110.0.26300.9711
microsoft/windows_server_2022< 10.0.20348.576110.0.20348.5761
microsoft/windows_server_2025< 10.0.26100.3365010.0.26100.33650
microsoft/native.quic.msquic.schannel< 2.6.22.6.2
microsoft/visual_studio_2022≥ 17.14.0, < 17.14.4217.14.42
microsoft/visual_studio_2026≥ 18.10.0, < 18.10.418.10.4
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85790 · [email protected]
EPSS history
Timeline
  • 15 OCT 03:34Z
    EPSS moved — → 1%
    epss
  • 13 OCT 19:00Z
    Microsoft QUIC Information Disclosure Vulnerability
    cvelistv5
  • 13 OCT 19:00Z
    Microsoft QUIC Information Disclosure Vulnerability
    cvelistv5