CVE-2022-26925: Microsoft Windows LSA Spoofing Vulnerability

Is it exploited?

Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 1 Jul 2022, 52 days after the CVE record was published.

How likely is exploitation in the next 30 days?

10.5%

EPSS score, percentile 95.7 of all scored records

How severe?

8.1 High

CVSS v3.1 base score, given by the CNA

What should I do?

CISA deadline 22 Jul 2022. Apply remediation actions outlined in CISA guidance [https://www.cisa.gov/guidance-applying-june-microsoft-patch].

Advisories and patches (1)

Which versions are affected?

Affected

• from 10.0.17763.0 to before 10.0.17763.2928
• from 10.0.0 to before 10.0.17763.2928
• from 10.0.17763.0 to before 10.0.17763.2928
• from 10.0.17763.0 to before 10.0.17763.2928
• from 10.0.0 to before 10.0.18363.2274
• from 10.0.0 to before 10.0.19043.1706

and 14 more in the table below

Versions by product

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

What to do

CISA due date for this action: 22 July 2022.

Advisories and patches

• Windows LSA Spoofing Vulnerability (Vendor advisory)

Linked from CISA's catalog entry

• https://nvd.nist.gov/vuln/detail/CVE-2022-26925

Affected products and versions

As listed in the CVE record.

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

About this vulnerability

Microsoft Windows Local Security Authority (LSA) contains a spoofing vulnerability where an attacker can coerce the domain controller to authenticate to the attacker using NTLM.

Summary: CISA's KEV catalog, as of 28 Oct 2026.

• CISA added CVE-2022-26925 to its Known Exploited Vulnerabilities (KEV) catalog on 1 Jul 2022.
• CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
• The due date CISA sets for the required action is 22 Jul 2022.
• The CVE record was published on 10 May 2022, 52 days before it was added to KEV.
• The CVE record carries a CVSS v3.1 base score of 8.1 (High), given by its CNA.
• FIRST's EPSS model puts the probability of exploitation in the next 30 days at 10.5% (percentile 95.7), as of 28 Oct 2026.
• CISA's SSVC assessment in the CVE record: exploitation active, automatable yes, technical impact partial.

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.

Description

Windows LSA Spoofing Vulnerability

Windows LSA Spoofing Vulnerability

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

Weakness

• CWE-306: Missing Authentication for Critical Function

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.

Timeline

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