CVE-2026-26123 is a medium-severity information disclosure vulnerability (CVSS 5.5) affecting Microsoft Authenticator, allowing an unauthorized attacker with local access to disclose sensitive information. Exploitation has low attack complexity but requires user interaction, leading to a high confidentiality impact. There is currently no evidence of active exploitation, no public exploit code is available, and it is not listed in the KEV catalog, despite receiving some community discussion and media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 6.8.40CPE matchmatch criteria | cpe:2.3:a:microsoft:authenticator:*:*:*:*:*:iphone_os:*:* | ||
< 6.2511.7533CPE matchmatch criteria | cpe:2.3:a:microsoft:authenticator:*:*:*:*:*:android:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.