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CVE Record

CVE-2020-9759: webOS TV Emulator privilege escalation vulnerability

A Vulnerability of LG Electronic web OS TV Emulator could allow an attacker to escalate privileges and overwrite certain files. This vulnerability is due to wrong environment setting. An attacker could exploit this vulnerability through crafted configuration files and executable files.

MediumCVSS 4.6Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2020-9759 affects the LG webOS TV Emulator. A local, low-privileged attacker could use crafted configuration and executable files to gain higher privileges and overwrite some files. The public data rates it medium severity and does not show known active exploitation.

Executive priority

Treat this as a targeted developer-environment risk, not an internet-wide emergency. Prioritize if webOS emulator tooling exists on shared engineering systems or machines with sensitive source code, credentials, or release access.

Technical view

The CVSS 3.1 vector is AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N, score 4.6. The issue is attributed to incorrect environment settings in the emulator, enabling privilege escalation and limited file overwrite. Public affected-version data is incomplete.

Likely exposure

Exposure is most likely on developer, QA, research, or build systems where the LG webOS TV Emulator is installed. The provided CVE data does not identify specific versions, CPEs, or consumer TV exposure.

Exploitation context

The source bundle indicates local access, low privileges, and user interaction are required. KEV is false, and the cited sources do not substantiate active exploitation in the wild.

Researcher notes

The CVE record lacks affected versions and CPEs. One listed Debian WeeChat advisory appears unrelated to the webOS emulator issue, so it should not be used to infer product impact or remediation.

Mitigation direction

  • Inventory systems running LG webOS TV Emulator.
  • Check LG or project vendor guidance for affected versions and updates.
  • Restrict emulator use to trusted users and controlled workstations.
  • Avoid running untrusted emulator configurations or executables.
  • Isolate emulator environments from sensitive files and credentials.

Validation and detection

  • Confirm whether LG webOS TV Emulator is installed in engineering environments.
  • Record emulator versions and compare them with vendor advisories.
  • Review who can execute emulator workloads on shared systems.
  • Check whether emulator workspaces can overwrite sensitive files.
  • Verify controls prevent untrusted configuration or executable ingestion.
Prepared
Confidence
medium
Sources
4

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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Privilege 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 lookup
cve · low confidence lookup

CVE-2020-9759 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.6 (3.1)
Known Exploited
No
Published

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

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
3Source 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
4.6CVSS 3.1MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N1.52.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

4.6Medium
CVSS 3.1 vector shape for CVE-2020-9759Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.