Security readout for executives and security teams
Plain-English summary
CVE-2021-38464 affects InHand Networks IR615 routers running versions 2.3.0.r4724 or 2.3.0.r4870. The issue is weak encryption, which could let an attacker intercept communications, steal sensitive information, or hijack a session. The published severity is medium, but confidentiality and integrity impact are high if the device is reachable in a relevant network path.
Executive priority
Treat this as a targeted infrastructure risk, not an internet-wide emergency based on provided evidence. Prioritize inventory and remediation for affected routers in sensitive or operational networks where intercepted traffic could affect business continuity or confidentiality.
Technical view
The CVE describes inadequate encryption strength in specific IR615 firmware versions. CVSS 3.1 is 6.4 with adjacent attack vector, high attack complexity, no privileges required, user interaction required, and high confidentiality and integrity impact. The source bundle does not describe a specific exploit method, patch version, or workaround.
Likely exposure
Exposure is limited to InHand Networks IR615 routers running 2.3.0.r4724 or 2.3.0.r4870. Risk is most relevant where attackers can access adjacent network paths or observe communications involving the router.
Exploitation context
The CVE is not listed as CISA KEV in the provided bundle, and no cited source states active exploitation. Available evidence supports interception and session-hijack risk in principle, not confirmed exploitation in the wild.
Researcher notes
Key unknowns remain: the bundle does not identify the weak cipher or protocol, fixed firmware, proof-of-concept status, or precise exploitation conditions beyond CVSS. Validation should focus on version confirmation, network adjacency, and official vendor/CISA guidance.
Mitigation direction
- Identify all InHand IR615 routers and firmware versions.
- Check InHand and CISA advisory guidance for official updates or mitigations.
- Restrict management and sensitive traffic to trusted network segments.
- Avoid exposing router administration paths beyond necessary adjacent networks.
- Monitor for unusual sessions or traffic involving affected routers.
Validation and detection
- Confirm whether any IR615 devices run 2.3.0.r4724 or 2.3.0.r4870.
- Map who can access adjacent network paths to affected routers.
- Review whether sensitive sessions traverse the affected router.
- Verify vendor guidance before declaring remediation complete.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-326: Exact CWE lookup
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Open ATT&CK lookupCVE-2021-38464 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
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.
CVSS vector scores
1 official scoreWe 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.
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N1.25.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.4MediumVector: CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://us-cert.cisa.gov/ics/advisories/icsa-21-280-05CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Inadequate Encryption Strength
Inadequate Encryption Strength represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.