CVE-2026-88123

Microsoft Windows Server 2012: out-of-bounds read

Risk score: 62/100
CVSS: 6.5 v3.1
Exploit chance (30 days): 1.1%
Published: 13 Oct 2026

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What to know

What it is: Out-of-bounds read in DNS Server allows an authorized attacker to deny service over a network.
Affected: Microsoft Windows Server 2012
Fix: Apply the vendor's security update; see the linked advisory.
Exploitation: No known exploitation

Why it is Amber

CVSS 6.5 medium
On your watchlist: windows server

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88123

Original description

Out-of-bounds read in DNS Server allows an authorized attacker to deny service over a network.

Last activity 13 Oct 2026. Patch Forecast updates every hour.