CVE-2026-62898CWE-416

CVE-2026-62898

High · published August 11, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
63.3
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
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.01027 · 63.3th percentile
Weakness
CWE-416 · Use After Free
Published
2026-08-11T21:18Z
Affected products (5)
ProductVersionsFixed in
microsoft/visual_studio_2022≥ 17.14.0, < 17.14.3817.14.38
microsoft/visual_studio_2026≥ 18.8.0, < 18.8.318.8.3
microsoft/.net≥ 8.0.0, < 8.0.308.0.30
microsoft/.net≥ 9.0.0, < 9.0.199.0.19
microsoft/.net≥ 10.0.0, < 10.0.1110.0.11
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62898 · [email protected]
EPSS history
Timeline
  • 11 AUG 17:07Z
    Microsoft QUIC Information Disclosure Vulnerability
    cvelistv5