CVE-2026-77897

highpriority · track · 28EPSS 0.003 · 20 %ileNLRUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.28% (20th) EPSS

CVSS 7 · high

Is it mine?

9 products

Check your exposure

Who says so?

4 sources

fstec_bdu · msrc_csaf · ncsc_nl · nvd

EPSS · scored 2026-10-23

Relative path traversal in Power Automate allows an authorized attacker to elevate privileges locally.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedPower Automate agent for virtual desktopsmsrc_csaf
2.71.115.26224:Security Update:https://learn.microsoft.com/en-us/power-platform/released-versions/power-automate-desktop
https://learn.microsoft.com/en-us/power-platform/released-versions/power-automate-desktop
FixedPower Automate for Desktopmsrc_csaf
2.71.115.26224:Security Update:https://learn.microsoft.com/en-us/power-platform/released-versions/power-automate-desktop
https://learn.microsoft.com/en-us/power-platform/released-versions/power-automate-desktop

cvss

Technical severity, 0–10. One row per scoring source.

7.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.4–7

v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · secure@microsoft.com USexploitability 1 · impact 5.9

v3.17highAV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.16.4mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-23USCWE-23USCWE-23US

affected products (9)

Products and version ranges known to be affected.

Microsoft Corp Microsoft Power Automate for Desktop≤ 2.71.115.26224fstec_bduRU
Microsoft Power Automate agent for virtual desktopsall versionsfixedmsrc_csafUS
Microsoft Power Automate agent for virtual desktops< 2.71.115.26224msrc_csafUS
Microsoft Power Automate for Desktopall versionsfixedmsrc_csafUS
Microsoft Power Automate for Desktop< 2.71.115.26224msrc_csafUS
Microsoft Microsoft Dynamics 365 (on-premises) version 9.1≤ vers:unknown/*ncsc_nlNL
Microsoft Power Automate agent for virtual desktops≤ vers:unknown/*ncsc_nlNL
Microsoft Power Automate for Desktop≤ vers:unknown/*ncsc_nlNL
microsoft power automate for desktop< 2.71.115.26224nvdUScpe:2.3:a:microsoft:power_automate_for_desktop:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2026-0348Kwetsbaarheden verholpen in Microsoft DynamicsNL2026-09-08csaf · ncsc_nlNL
Microsoft heeft 2 kwetsbaarheden verholpen in Dynamics, zowel online als on-premise.
msrc_CVE-2026-77897Microsoft Power Automate Desktop Elevation of Privilege Vulnerability2026-09-08csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

also known as (1)

Other names and identifiers for this entity.

BDU:2026-16054 fstec_bdu

sources

Which sources assert this record, and when.

fstec_bdu msrc_csaf ncsc_nl nvd NVD CVE.org MITRE

published 2026-09-08modified 2026-10-08

references (1) nvd

External citations — patches, advisories, analysis.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77897Vendor Advisory

scry

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