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CVE Record

CVE-2019-18279: In Phoenix SCT WinFlash 1.1.12.0 through 1.5.74.0, the included drivers could be used by a malicious Window...

In Phoenix SCT WinFlash 1.1.12.0 through 1.5.74.0, the included drivers could be used by a malicious Windows application to gain elevated privileges. Adverse impacts are limited to the Windows environment and there is no known direct impact to the UEFI firmware. This was fixed in late June 2019.

HighCVSS 8.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This CVE concerns Phoenix SCT WinFlash for Windows. Its included drivers could let a malicious Windows application gain higher privileges. The sources say impacts are limited to Windows and do not directly affect UEFI firmware. Phoenix states the issue was fixed in late June 2019.

Executive priority

Treat this as a high-priority endpoint hygiene and legacy tooling issue. It is not described as a direct firmware compromise, but vulnerable signed drivers can undermine Windows endpoint controls if left behind after update workflows.

Technical view

Phoenix SCT WinFlash versions 1.1.12.0 through 1.5.74.0 included drivers that could be abused by a malicious Windows application for privilege escalation. CVSS 3.1 score is 8.8. The CVE record does not provide CPEs or CWEs, and KEV does not list known exploited status.

Likely exposure

Exposure is most likely on Windows endpoints or admin workstations where vulnerable Phoenix SCT WinFlash packages or their drivers remain installed, including systems that received OEM firmware update utilities. Non-Windows environments are not indicated as affected by the source bundle.

Exploitation context

The bundle does not cite active exploitation. Abuse requires a malicious Windows application and the vulnerable driver presence. The business risk is elevated local privilege, potentially allowing deeper endpoint compromise after initial code execution or user-assisted execution.

Researcher notes

Do not overstate scope: sources identify Windows privilege escalation through included drivers, not direct UEFI firmware impact. The CVE metadata lacks CPE detail, so validation should rely on local software and driver inventory plus Phoenix or OEM package guidance.

Mitigation direction

  • Inventory Windows endpoints for Phoenix SCT WinFlash 1.1.12.0 through 1.5.74.0.
  • Remove vulnerable WinFlash packages or drivers where they are no longer required.
  • Apply Phoenix or OEM guidance using a build fixed after late June 2019.
  • Restrict execution of untrusted Windows applications on exposed endpoints.
  • Monitor endpoint controls for suspicious driver loading or privilege escalation behavior.

Validation and detection

  • Confirm whether Phoenix SCT WinFlash is installed on Windows endpoints.
  • Check installed WinFlash versions against 1.1.12.0 through 1.5.74.0.
  • Verify any retained package is a vendor-confirmed fixed release.
  • Review software deployment tools for old OEM firmware update bundles.
  • Confirm EDR or application control covers untrusted driver abuse paths.
Prepared
Confidence
high
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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

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CVE-2019-18279 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
8.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
8.8CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H2.85.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

8.8High
CVSS 3.1 vector shape for CVE-2019-18279Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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