Security readout for executives and security teams
Plain-English summary
CVE-2022-44367 is a critical buffer overflow reported in Tenda i21 firmware V1.0.0.14(4656) via /goform/setUplinkInfo. The CVSS 9.8 rating means a reachable device could be severely compromised without authentication. The provided sources do not name a vendor patch or confirm active exploitation.
Executive priority
Treat as urgent for any deployed Tenda i21 device on the named firmware, particularly if remotely reachable. The potential business impact is full device compromise or outage, but remediation should be guided by vendor-confirmed updates or compensating network controls.
Technical view
The record maps to CWE-787 out-of-bounds write. The reported endpoint is /goform/setUplinkInfo on Tenda i21 V1.0.0.14(4656). CVSS vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H indicates remote, low-complexity, unauthenticated attack surface with high confidentiality, integrity, and availability impact.
Likely exposure
Likely exposure is limited to Tenda i21 devices running firmware V1.0.0.14(4656), especially where administrative web interfaces are reachable from untrusted networks. Confidence is reduced because the CVE affected-product fields are listed as n/a despite the title and description naming Tenda i21.
Exploitation context
The source bundle marks KEV as false, and no cited source confirms active exploitation. A public GitHub reference exists, but the available evidence does not establish real-world exploitation, exploit maturity, or broader affected firmware versions.
Researcher notes
The public CVE data is sparse: affected CPEs are absent and only one firmware version is explicitly named. Avoid extrapolating to other Tenda models or versions without vendor confirmation or independent testing. No source in the bundle names a patch.
Mitigation direction
- Inventory Tenda i21 devices and confirm firmware version V1.0.0.14(4656).
- Restrict device management interfaces to trusted administrative networks only.
- Check Tenda or device-management guidance for firmware updates or replacement advice.
- Monitor logs for unexpected access to /goform/setUplinkInfo.
- Prioritize isolation if exposed to the internet or guest networks.
Validation and detection
- Search asset inventory for Tenda i21 deployments.
- Verify firmware versions through approved administrative channels.
- Confirm management interfaces are not internet-exposed.
- Review firewall rules limiting access to device administration paths.
- Document whether vendor guidance or updated firmware is available.
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-787: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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 lookupCVE-2022-44367 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
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.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.