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CVE Record

CVE-2022-35911: On Patlite NH-FB series devices through 1.46, remote attackers can cause a denial of service by omitting th...

On Patlite NH-FB series devices through 1.46, remote attackers can cause a denial of service by omitting the query string. NOTE: the vendor's perspective is that "omitting the query string does not cause a denial of service and the indicated event can not be reproduced.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This CVE concerns Patlite NH-FB network devices and an alleged remote denial-of-service issue in versions through 1.46. The report says a malformed web request can disrupt availability, but the CVE record notes the vendor could not reproduce the event and disputes that it causes denial of service.

Executive priority

Treat this as a targeted operational-technology availability concern, not a confirmed emergency. Prioritize inventory and network restriction if NH-FB devices support safety, production, or customer-facing operations.

Technical view

The public record describes a remote DoS condition affecting Patlite NH-FB series devices through firmware 1.46, triggered by omission of a query string. Packet Storm references a Patlite 1.46 buffer overflow report. No CVSS, CWE, confirmed patch, or reproducible vendor finding is provided in the bundle.

Likely exposure

Exposure is limited to organizations using Patlite NH-FB network signaling devices, especially if device web interfaces are reachable beyond trusted operational networks. The source bundle does not prove internet-scale exposure or identify other affected Patlite products.

Exploitation context

There is no KEV listing and no cited evidence of active exploitation. The available evidence is disputed: a third-party report alleges a denial-of-service condition, while the vendor states the described event cannot be reproduced.

Researcher notes

The record is materially incomplete and disputed. Key gaps are CVSS, CWE, vendor-confirmed impact, fixed version, and reproducibility evidence. Any assessment should clearly separate the third-party allegation from the vendor’s stated inability to reproduce.

Mitigation direction

  • Identify any Patlite NH-FB devices and their firmware versions.
  • Restrict device web access to trusted administrative networks only.
  • Review Patlite guidance for firmware support or vendor-confirmed updates.
  • Monitor devices for unexplained outages, resets, or availability loss.
  • Avoid exposing operational signaling devices directly to the internet.

Validation and detection

  • Confirm whether NH-FB devices exist in asset inventory.
  • Record firmware versions and compare against the reported through-1.46 range.
  • Check network paths that can reach device management interfaces.
  • Review monitoring history for unexplained availability events.
  • Validate any reproduction only in an isolated, authorized lab.
Prepared
Confidence
low
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.

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CVE-2022-35911 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
4Source 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.