CVE-2026-77897 json
Microsoft Power Automate Desktop Elevation of Privilege Vulnerability
published 2026-09-08 2 mo ago modified 2026-10-31 8 d ago also EUVD-2026-73887
- cvss
- 7.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 20%
- public exploits
- 0
- none known
Summary
Relative path traversal in Power Automate allows an authorized attacker to elevate privileges locally.
Patch / fix
- Microsoft Power Automate agent for virtual desktops 2.71.115.26224
- Microsoft Power Automate for Desktop 2.71.115.26224
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 mo ago
Exploit prediction
0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C |
| CNA | 3.1 | 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Microsoft Power Automate agent for virtual desktops
- Microsoft Power Automate for Desktop
Classification
- Weakness
-
- CWE-23 Relative Path Traversal
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2026-77897
vendor-advisory, patch
Sources
- CVE List CVE-2026-77897
- NVD CVE-2026-77897
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.