CVE-2026-26123
Microsoft Authenticator Information Disclosure Vulnerability
Cwe is not in rca categories in Microsoft Authenticator allows an unauthorized attacker to disclose information locally.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Microsoft Authenticator Information Disclosure Vulnerability
Cwe is not in rca categories in Microsoft Authenticator allows an unauthorized attacker to disclose information locally.
- Record
CVE-2026-26123- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C - Weakness
- CWE-939
- Updated
- 2026-11-02
EUVDEUVD-2026-10796
Cwe is not in rca categories in Microsoft Authenticator allows an unauthorized attacker to disclose information locally.
- Record
EUVD-2026-10796- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-5mf6-5mjf-6v7r
Cwe is not in rca categories in Microsoft Authenticator allows an unauthorized attacker to...
Cwe is not in rca categories in Microsoft Authenticator allows an unauthorized attacker to disclose information locally.
- Record
GHSA-5mf6-5mjf-6v7r- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-939
- Updated
- 2026-11-02
NVD
Cwe is not in rca categories in Microsoft Authenticator allows an unauthorized attacker to disclose information locally.
- Record
CVE-2026-26123- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-939
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-26123 is a medium vulnerability (CVSS 5.5) in Microsoft Authenticator, published March 10, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.66%, the 51st percentile. No source names a fixed version.