CVE-2026-20864 is a heap-based buffer overflow vulnerability in the Connected Devices Platform Service (Cdpsvc) affecting various versions of Microsoft Windows 10, 11, and Windows Server. This flaw allows an authorized local attacker to achieve privilege escalation. Rated 7.8 HIGH on the CVSS scale, it presents a low attack complexity with high impact on confidentiality, integrity, and availability. While there is no evidence of active exploitation, public exploit code, or KEV listing, the vulnerability has garnered significant community discussion and media coverage, indicating notable attention despite its inactive Hot List status.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 10.0.17763.8276CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:* | ||
< 10.0.17763.8276CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:* | ||
< 10.0.19044.6809CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:* | ||
< 10.0.19045.6809CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:* | ||
< 10.0.22631.6491CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.