CVE-2026-97819: Role: DNS Server Information Disclosure Vulnerability
Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
Other sources
Role: DNS Server Information Disclosure Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5761Patch KB5126655 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.9612Patch KB5126868 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.9376Patch KB5126651 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.7807Patch KB5126657 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.3.9600.23470Patch KB5126836 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.2.9200.26434Patch KB5126835 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.3231Patch KB5127646 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33650Patch KB5126646 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26300.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.7652Patch KB5126653
Event History
Frequently Asked Questions
Who can exploit this issue?
An attacker must be authorized and able to reach the DNS Server over the network. No user interaction is required.
What is the potential impact?
Successful exploitation can disclose information. The supplied assessment indicates high confidentiality impact, with no integrity or availability impact.
Is this likely to affect a default DNS Server deployment?
The provided data does not state whether the vulnerable condition is enabled or reachable in a default configuration.
What can be done if patching cannot happen immediately?
The provided data does not include workaround or mitigation guidance. Restricting network access to the DNS Server to authorized users may reduce exposure, since exploitation requires network reachability and authorization.
How can I determine whether I am affected?
The provided data identifies DNS Server as the affected role, but does not provide affected product versions, build numbers, or detection indicators.