Security readout for executives and security teams
Plain-English summary
Mesa Labs AmegaView 3.0 and prior may allow unauthorized device access because its passcode is produced by an easily reversible algorithm. For executives, the concern is unauthorized access to a device used in operational environments, with potential low impact to confidentiality, integrity, and availability.
Executive priority
Treat as a high-priority operational technology exposure if AmegaView is present. Prioritize asset confirmation and network isolation first, then follow vendor and CISA remediation guidance.
Technical view
CVE-2021-27451 is CWE-287 improper authentication in Mesa Labs AmegaView. The CVSS 3.1 score is 7.3 with network attack vector, low complexity, no privileges, and no user interaction. The source bundle identifies the weakness as reversible passcode generation.
Likely exposure
Exposure is likely limited to organizations running Mesa Labs AmegaView 3.0 or earlier. Risk increases if the device or management interface is reachable from untrusted networks. The bundle does not provide CPEs or deployment prevalence.
Exploitation context
CISA KEV status is false in the bundle, and no cited source states active exploitation. The CVSS vector indicates remote unauthenticated attack feasibility, but the provided evidence does not include exploit availability or observed campaigns.
Researcher notes
The public bundle provides the weakness class, affected product statement, CVSS vector, and CISA advisory link, but not detailed fix information. Avoid assuming a patch, workaround, or exploit status beyond the cited sources.
Mitigation direction
- Identify Mesa Labs AmegaView deployments and determine whether versions are 3.0 or earlier.
- Check the CISA advisory and Mesa Labs guidance for vendor-supported remediation.
- Restrict AmegaView access to trusted administration networks only.
- Remove direct internet exposure for affected device interfaces.
- Monitor affected environments for unexpected device access or configuration changes.
Validation and detection
- Confirm asset inventory includes or excludes Mesa Labs AmegaView devices.
- Verify deployed AmegaView versions against the affected 3.0-and-prior range.
- Review firewall and remote-access rules for reachability from untrusted networks.
- Check logs for suspicious authentication or device-management activity.
- Document compensating controls until vendor remediation is confirmed.
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.
CWE-287: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. 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 lookupCVE-2021-27451 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
- 7.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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:N/UI:N/S:U/C:L/I:L/A:L3.93.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.3HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://us-cert.cisa.gov/ics/advisories/icsa-21-147-03CVE 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.
Improper Authentication
Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.