Security readout for executives and security teams
Plain-English summary
CVE-2022-50927 is a local privilege escalation issue in Vertiv Cyclades Serial Console Server versions 1.0.0 through 3.3.0. A user with low-level local access can potentially gain root control because default admin sudo privileges are overly broad. This matters because console servers often manage access to critical infrastructure.
Executive priority
High priority for organizations using Cyclades console servers in operational or data center environments. The issue requires prior local access, but successful exploitation could give root control of a device that may provide access paths into sensitive infrastructure.
Technical view
The vulnerability is attributed to overly permissive sudo privileges for the admin user and admin group, classified as CWE-266. The CVSS 4.0 score is 8.5, with local attack vector, low complexity, low privileges required, and high confidentiality, integrity, and availability impact on the vulnerable system.
Likely exposure
Exposure is limited to environments running affected Cyclades Serial Console Server versions where an attacker already has local or valid low-privileged access. Internet exposure alone is not enough based on the provided CVSS vector.
Exploitation context
A public ExploitDB reference exists, but the CVE is not listed as CISA KEV in the provided data. Treat exploitation as plausible where low-privileged access exists, but do not assume confirmed active exploitation without additional evidence.
Researcher notes
The available sources describe the vulnerability class, affected version range, CVSS vector, and public exploit reference. They do not provide confirmed active exploitation or a named vendor patch in the supplied bundle. Validate against vendor documentation before declaring remediation complete.
Mitigation direction
- Identify all Cyclades Serial Console Server deployments and versions.
- Prioritize affected versions 1.0.0 through 3.3.0 for review.
- Check Vertiv guidance for supported updates or configuration recommendations.
- Restrict local and administrative access to trusted personnel only.
- Review sudo/admin privilege configuration for excessive permissions.
- Increase monitoring of privileged activity on affected appliances.
Validation and detection
- Confirm appliance model and software version from asset records or management interfaces.
- Verify whether any device runs versions 1.0.0 through 3.3.0.
- Review configured admin users and group memberships.
- Audit sudo privilege assignments for overly broad access.
- Review logs for unexpected privilege elevation or admin activity.
- Document compensating controls if no vendor fix is available.
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.
CWE-266: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2022-50927 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
- 8.5 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
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:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
8.5HighVector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-50773CVE reference · exploit
- Vertiv Official HomepageCVE reference · product
- VulnCheck Advisory: Cyclades Serial Console Server 3.3.0 - Local Privilege EscalationCVE reference · third-party-advisory
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.
Incorrect Privilege Assignment
Incorrect Privilege Assignment represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.