How severe is CVE-2026-50508?

CVE-2026-50508 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-50508 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-50508?

CVE-2026-50508 primarily affects Microsoft Windows 10 1607. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-50508?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-50508 have an EU (EUVD) identifier?

Yes. CVE-2026-50508 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35529.

When was CVE-2026-50508 published?

CVE-2026-50508 was published on 2026-06-09 and last updated on 2026-07-23.

CVE-2026-50508

CVE-2026-50508 is a medium-severity vulnerability in Microsoft Windows 10 1607 with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-35529
Weakness: CWE-200
Affected product: Microsoft Windows 10 1607
Published: 2026-06-09
Last modified: 2026-07-23

Description

Exposure of sensitive information to an unauthorized actor in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.

Frequently asked questions

What is CVE-2026-50508?: Exposure of sensitive information to an unauthorized actor in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.
How severe is CVE-2026-50508?: CVE-2026-50508 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-50508 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-50508?: CVE-2026-50508 primarily affects Microsoft Windows 10 1607. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-50508?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-50508 have an EU (EUVD) identifier?: Yes. CVE-2026-50508 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35529.
When was CVE-2026-50508 published?: CVE-2026-50508 was published on 2026-06-09 and last updated on 2026-07-23.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50508

Affected products (9)

cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*

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