Summary
Impact: Information Disclosure. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
According to the CVSS metric, the attack complexity is high (AC:H). What does this mean for this vulnerability?
An attacker would need specific conditions to be in place (i.e. particular protocol settings, or configurations, etc.) before an attack could succeed, which reduces the likelihood of widespread or opportunistic exploitation.
What type of information could be disclosed by this vulnerability?
Exploiting this vulnerability could allow the disclosure of credentials.
Security updates
7.6.10 — https://github.com/PowerShell/Announcements/blob/main/pwsh/2026/11/CVE-2026-122985.md
Vulnerabilities 1
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Medium 6.1
Microsoft PowerShell Information Disclosure Vulnerability
Improper restriction of xml external entity reference in Microsoft PowerShell allows an unauthorized attacker to disclose information over a network.
Revision history
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#1
Information published.
References
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CVE-2026-122985 Microsoft PowerShell Information Disclosure Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-122985
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss