Security readout for executives and security teams
Plain-English summary
IBM Domino 9.0 and 9.0.1 contain a high-severity local command execution issue in nsd.exe argument handling. If an attacker can trigger the vulnerable path on a Domino host, they may execute system commands. This is most urgent for organizations still running legacy Domino 9.x systems.
Executive priority
Prioritize remediation for any remaining Domino 9.0 or 9.0.1 systems, especially production mail or collaboration servers. The business concern is local command execution on a high-value legacy platform, with potential full confidentiality, integrity, and availability impact.
Technical view
The flaw is a buffer overflow in parsing command-line arguments passed to nsd.exe. The CVSS 3.0 vector indicates local attack vector, low complexity, no privileges, no user interaction, unchanged scope, and high confidentiality, integrity, and availability impact. The source bundle names IBM Domino 9.0 and 9.0.1 only.
Likely exposure
Exposure is most likely on servers or workstations running IBM Domino 9.0 or 9.0.1 where local execution paths to nsd.exe exist. The provided sources do not identify affected later versions, cloud services, or internet-remote exploitation.
Exploitation context
The bundle does not show CISA KEV listing or confirmed active exploitation. CVSS exploit maturity is listed as unproven. Treat this as a serious local execution risk, not as a confirmed widely exploited internet-facing issue.
Researcher notes
Do not assume remote exploitability from the provided data. The key constraints are local attack vector, nsd.exe command-line argument parsing, affected Domino 9.0 and 9.0.1, and unproven exploit maturity. Patch specifics are not included in the bundle, so defer version-level fix claims to IBM guidance.
Mitigation direction
- Identify all IBM Domino 9.0 and 9.0.1 installations.
- Review IBM advisory and X-Force entry for the official remediation path.
- Apply IBM's vendor-supported fix or upgrade guidance where applicable.
- Restrict local access to Domino hosts until remediation is complete.
- Retire unsupported Domino 9.x systems where vendor-supported remediation is unavailable.
Validation and detection
- Inventory Domino versions on servers and administrative workstations.
- Confirm whether nsd.exe is present on affected Domino 9.x hosts.
- Verify vendor remediation status against IBM guidance.
- Check access controls for local users and service accounts on Domino hosts.
- Review endpoint and server logs for unusual nsd.exe execution patterns.
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.
CVE-2018-1771 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.4 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/A:H/AC:L/AV:L/C:H/I:H/PR:N/S:U/UI:N/E:U/RC:C/RL:O
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:3.0/A:H/AC:L/AV:L/C:H/I:H/PR:N/S:U/UI:N/E:U/RC:C/RL:O2.55.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.4HighVector: CVSS:3.0/A:H/AC:L/AV:L/C:H/I:H/PR:N/S:U/UI:N/E:U/RC:C/RL:O
Source materials
- CVE List V5 sourceCVE List V5
- ibm-notes-cve20181771-priv-escalation(148687)CVE reference · vdb-entry, x_refsource_XF
- https://www.ibm.com/support/docview.wss?uid=ibm10743405CVE reference · x_refsource_CONFIRM
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.
