CVE-2025-26685

mediumpriority · track · 0EPSS 0.007 · 54 %ileDEEUNLRUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.73% (54th) EPSS

CVSS 6.5 · medium

Is it mine?

6 products

Check your exposure

Who says so?

7 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Improper authentication in Microsoft Defender for Identity allows an unauthorized attacker to perform spoofing over an adjacent network.

cvss

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

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.5mediumAV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.16.5mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:Csecondary · ENISA EU

v3.16.5mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · secure@microsoft.com USexploitability 2.8 · impact 3.6

v3.16mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.16.5mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

ssvc

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

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287USCWE-287USCWE-287USCWE-287US

affected products (6)

Products and version ranges known to be affected.

Microsoft Defender for Identityall versionscert_bundDEcpe:/a:microsoft:defender:for_identity
Microsoft Microsoft Defender for Identityall versionsenisa_euvdEU
Microsoft Corp Microsoft Defender for Identityall versionsfstec_bduRU
Microsoft Defender for Endpoint for Linux≤ vers:microsoft/unknownncsc_nlNLcpe:2.3:a:microsoft:defender_for_endpoint:-:*:*:*:*:*:*:*
Microsoft Defender for Identity≤ vers:microsoft/unknownncsc_nlNLcpe:2.3:a:microsoft:defender_for_identity:-:*:*:*:*:*:*:*
microsoft defender for identityall versionsnvdUScpe:2.3:a:microsoft:defender_for_identity:*:*:*:*:*:*:*:*

advisories (3)

Vendor and ecosystem advisories describing this.

NCSC-2025-0157Kwetsbaarheden verholpen in Microsoft DefenderNL2025-05-13csaf · ncsc_nlNL
Microsoft heeft kwetsbaarheden verholpen in Defender for Endpoint en Defender for Identity.
WID-SEC-W-2025-1048Microsoft Defender: Mehrere SchwachstellenDeutsch2025-05-13csaf · cert_bundDE
Ein lokaler authentisierter Angreifer, oder ein Angreifer aus einem angrenzenden Netzwerk kann mehrere Schwachstellen in Microsoft Defender ausnutzen, um seine Privilegien zu erweitern oder Dateien zu manipulieren.
msrc_CVE-2025-26685Microsoft Defender for Identity Spoofing Vulnerability2025-05-13csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund ncsc_nl nvd msrc_csaf NVD CVE.org MITRE

published 2025-05-13modified 2026-06-17

references (4)

External citations — patches, advisories, analysis.

scry

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