Security readout for executives and security teams
Plain-English summary
This flaw lets a remote attacker run operating-system commands on affected HGiga OAKlouds systems without signing in. If the mobile portal is reachable, compromise could affect confidentiality, integrity, and availability of the device and hosted services.
Executive priority
Urgent for any exposed HGiga OAKlouds deployment. The business risk is full remote compromise without credentials, so inventory and isolation should precede routine remediation work.
Technical view
CVE-2021-37913 is a CWE-78 command injection in the IPv6 Gateway parameter on the network interface card setting page. Affected versions are OAKlouds-network 2.0 on OAKSv2 and OAKlouds-network 3.0 on OAKSv3. CVSS 3.1 is 9.8 critical.
Likely exposure
Exposure is most likely where HGiga OAKlouds OAKSv2 or OAKSv3 mobile portal/network settings interfaces are reachable from untrusted networks. The source states exploitation does not require login.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. Risk remains high because the bug is unauthenticated, network-reachable, low-complexity command injection with full CIA impact.
Researcher notes
Evidence is concise: affected products, vulnerable parameter, unauthenticated command injection, and CVSS are provided. The bundle does not name a patch, workaround, indicators, or active exploitation evidence.
Mitigation direction
- Check HGiga or TWCERT guidance for fixed versions or vendor-approved mitigations.
- Remove internet exposure to affected mobile portal interfaces until remediation is confirmed.
- Restrict access with VPN, allowlisting, and management network segmentation.
- Monitor systems for unexpected command execution, configuration changes, or service disruption.
- Prioritize replacement or isolation if no vendor fix is available.
Validation and detection
- Inventory HGiga OAKlouds deployments and confirm OAKSv2 or OAKSv3 versions.
- Identify whether mobile portal or network settings pages are externally reachable.
- Confirm installed OAKlouds-network version against 2.0 and 3.0 affected entries.
- Review access and system logs for suspicious unauthenticated activity.
- Document remediation status against HGiga or TWCERT advisory guidance.
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-78: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. 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 lookupExecution 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 lookupCVE-2021-37913 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
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.twcert.org.tw/tw/cp-132-5092-f88e2-1.htmlCVE 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.