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CVE Record

CVE-2020-35755: An issue was discovered on Libre Wireless LS9 LS1.5/p7040 devices.

An issue was discovered on Libre Wireless LS9 LS1.5/p7040 devices. There is a luci_service Read_ NVRAM Direct Access Information Leak. The luci_service deamon running on port 7777 provides a sub-category of commands for which Read_ is prepended. Commands in this category are able to directly read the contents of the device configuration NVRAM. The NVRAM contains sensitive information, such as the Wi-Fi password (in cleartext), as well as connected account tokens for services such as Spotify.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This vulnerability can expose secrets stored on affected Libre Wireless LS9 LS1.5/p7040 devices. The service on port 7777 can read configuration NVRAM, which the CVE says may contain cleartext Wi-Fi passwords and service tokens such as Spotify tokens. Business risk depends mainly on whether these devices are deployed and reachable from untrusted networks.

Executive priority

Prioritize discovery and containment if these devices exist in production or guest-facing networks. The issue can expose credentials and service tokens, but urgency is lower if no affected devices are deployed or the service is isolated.

Technical view

CVE-2020-35755 is an information leak in the luci_service daemon on Libre Wireless LS9 LS1.5/p7040 devices. A Read_ command category can directly read device configuration NVRAM. The public record does not provide CVSS, CWE, CPE data, confirmed fixed versions, or a vendor mitigation path.

Likely exposure

Exposure is likely limited to environments using Libre Wireless LS9 LS1.5/p7040 devices. Risk increases if luci_service on port 7777 is reachable by guests, users, adjacent networks, or the internet. The source bundle does not identify other affected products.

Exploitation context

The CVE describes direct NVRAM information disclosure, but the bundle does not cite active exploitation. It is not listed as CISA KEV. Treat it as credible sensitive-data exposure, not as confirmed exploitation in the wild.

Researcher notes

Evidence is limited to the CVE description and referenced advisory. The record lacks CVSS scoring, affected CPEs, CWE classification, fixed versions, and exploitation evidence. Avoid broad product assumptions beyond Libre Wireless LS9 LS1.5/p7040.

Mitigation direction

  • Identify any Libre Wireless LS9 LS1.5/p7040 devices in the environment.
  • Check vendor or device-maintainer guidance for fixed firmware or official mitigations.
  • Restrict access to luci_service port 7777 to trusted management networks only.
  • Segment or remove affected devices if no supported fix is available.
  • Rotate Wi-Fi passwords and connected service tokens after suspected exposure.

Validation and detection

  • Confirm deployed device model and firmware against the CVE and advisory scope.
  • Verify whether port 7777 is reachable from untrusted or user-accessible networks.
  • Review whether affected devices store Wi-Fi passwords or service tokens in NVRAM.
  • Check asset records for internet-exposed or guest-network-accessible devices.
  • Document any compensating controls that restrict management-service access.
Prepared
Confidence
medium
Sources
3

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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description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2020-35755 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

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.