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CVE Record

CVE-2024-44667: Shenzhen Haichangxing Technology Co., Ltd HCX H822 4G LTE Router M7628NNxISPxUIv2_v1.0.1557.15.35_P0 is vul...

Shenzhen Haichangxing Technology Co., Ltd HCX H822 4G LTE Router M7628NNxISPxUIv2_v1.0.1557.15.35_P0 is vulnerable to Incorrect Access Control. Unauthenticated factory mode reset and command injection leads to information exposure and root shell access.

HighCVSS 8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2024-44667 affects a reported HCX H822 4G LTE router firmware build. The weakness may allow unauthorized reset behavior and command injection, with reported outcomes including information exposure and root shell access. Treat it as high risk where this router model and firmware are present.

Executive priority

Prioritize remediation for any deployed HCX H822 routers, especially in operational or remote-access environments. Business risk is high because compromise could expose data and grant root-level device control.

Technical view

The CVE describes incorrect access control in Shenzhen Haichangxing HCX H822 firmware M7628NNxISPxUIv2_v1.0.1557.15.35_P0. Reported impact includes unauthenticated factory mode reset and command injection. CVSS 3.1 is 8.0 high, mapped to CWE-863, but structured affected vendor/product fields are listed as n/a.

Likely exposure

Exposure is most likely limited to organizations using the HCX H822 4G LTE router with the named firmware build. The record lacks CPEs and normalized affected product data, so inventory validation is necessary.

Exploitation context

The source bundle does not show CISA KEV inclusion or active exploitation claims. A public research reference exists, but the provided evidence does not establish exploitation in the wild.

Researcher notes

Evidence is limited to the CVE metadata and one public write-up reference. Note the inconsistency between the description saying unauthenticated and the CVSS vector showing PR:L and AV:A. Avoid assuming broader JBoneOS/JBoneCloud product impact without vendor confirmation.

Mitigation direction

  • Check Shenzhen Haichangxing or device supplier guidance for firmware updates or replacement advice.
  • Remove router management access from untrusted networks and adjacent user segments.
  • Restrict access to administrative interfaces using network controls and strong authentication.
  • Replace or isolate affected devices if no vendor-supported fix is available.
  • Monitor for unexpected factory resets, configuration changes, or device compromise indicators.

Validation and detection

  • Inventory HCX H822 routers and record exact firmware versions.
  • Compare firmware against M7628NNxISPxUIv2_v1.0.1557.15.35_P0.
  • Review network exposure of router management and diagnostic interfaces.
  • Check whether vendor, integrator, or carrier firmware updates are available.
  • Confirm monitoring covers router resets, configuration changes, and administrative access.
Prepared
Confidence
medium
Sources
3

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.

cwe · medium confidence lookup

CWE-863: Authorization and privilege behavior lookup

Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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 lookup
description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. 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-2024-44667 mapping review

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

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/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
3Timeline events
1ADP providers
2Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: noTechnical Impact: total

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
8CVSS 3.1HighCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H2.15.9CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

8High
CVSS 3.1 vector shape for CVE-2024-44667Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/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

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
cvssV3_1other:ssvc
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

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

CWE-863 · source CWE mapping

Incorrect Authorization

Incorrect Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.