CVE-2023-28277
Published: 11 April 2023
Summary
CVE-2023-28277 is a medium-severity Integer Overflow or Wraparound (CWE-190) vulnerability in Microsoft Windows Server 2022. Its CVSS base score is 4.9 (Medium).
Operationally, ranked in the top 7.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2023-28277 is an information disclosure vulnerability affecting the Windows DNS Server component. It carries a CVSS 3.1 base score of 4.9 and is associated with CWE-190, indicating an integer overflow or wraparound condition that can lead to unintended exposure of sensitive data.
An attacker with high privileges can exploit the flaw over the network with low attack complexity and no user interaction required. Successful exploitation allows the attacker to obtain confidential information from the DNS server while leaving integrity and availability unaffected.
Microsoft has published remediation guidance for the issue through its Security Response Center at the referenced update-guide URL. The EPSS score has remained flat at a peak of 0.0774 since disclosure, indicating no material increase in observed exploitation interest.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-31984
Vulnerability details
Windows DNS Server Information Disclosure Vulnerability
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.