Security readout for executives and security teams
Plain-English summary
CVE-2020-0761 is a high-severity Microsoft vulnerability in Active Directory integrated DNS. A logged-in attacker who can send crafted requests to an affected ADIDNS server could make the server run code as Local System, giving broad control over that server.
Executive priority
Treat this as a high-priority infrastructure patching issue, especially for domain controllers and DNS servers. It is not reported as actively exploited in the supplied sources, but the potential Local System impact on AD DNS infrastructure is material.
Technical view
The flaw is remote code execution caused by ADIDNS mishandling objects in memory. It is network reachable, low complexity, requires low privileges, and needs no user interaction. Microsoft states the security update corrects ADIDNS memory handling. CVSS v3.1 score is 8.8.
Likely exposure
Exposure is most likely in organizations running affected Windows Server versions with Active Directory integrated DNS, including domain controller or DNS infrastructure using Windows Server 2008 through Windows Server 2019 and version 2004/1909/1903 Server Core builds.
Exploitation context
The source bundle does not identify known active exploitation, and KEV status is false. Exploitation requires authentication and malicious requests to an ADIDNS server. Successful exploitation runs arbitrary code as Local System, so compromised low-privilege credentials could increase impact.
Researcher notes
Key exposure conditions are affected Windows Server version, AD-integrated DNS role, and authenticated network access. The provided sources do not include exploit details, IOCs, or alternative mitigations beyond Microsoft’s update correcting memory handling.
Mitigation direction
- Apply the Microsoft security update for CVE-2020-0761 on affected servers.
- Prioritize AD-integrated DNS servers and domain controllers in patch rollout.
- Check MSRC guidance for the exact update path per Windows Server version.
- For unsupported platforms, confirm Microsoft servicing options before assuming coverage.
Validation and detection
- Inventory Windows Server systems running Active Directory integrated DNS.
- Compare OS versions against the affected product list in the CVE source bundle.
- Confirm patch management or vulnerability scanner status for CVE-2020-0761.
- Verify affected DNS servers completed update installation and any required reboot.
- Document exceptions where an affected server cannot be immediately updated.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-0761 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0761CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.