Security readout for executives and security teams
Plain-English summary
This issue can let an unauthenticated network attacker crash an affected Tenda i22 device by triggering a buffer overflow. The published impact is availability only, not data theft or device takeover. Business urgency is highest where these access points are internet-facing or support critical connectivity.
Executive priority
Prioritize within normal high-severity network-device remediation, escalating if any affected Tenda i22 is internet-facing or operationally critical. There is no provided evidence of active exploitation, but the unauthenticated network availability impact makes exposure reduction important.
Technical view
CVE-2022-45663 is a CWE-120 buffer overflow in the index parameter of formWifiMacFilterSet on Tenda i22 V1.0.0.3(4687). CVSS 3.1 is 7.5: network reachable, low complexity, no privileges or user interaction, unchanged scope, and high availability impact only.
Likely exposure
Exposure is likely limited to environments running Tenda i22 firmware V1.0.0.3(4687), especially where the device management surface is reachable from untrusted networks. The CVE record's affected product fields are incomplete, so asset confirmation must rely on device model and firmware inventory.
Exploitation context
The source bundle does not show CISA KEV listing or confirmed active exploitation. Public reference material exists, but the cited CVSS impact supports denial of service rather than confidentiality or integrity compromise. Treat internet-exposed management interfaces as materially higher risk.
Researcher notes
The CVE metadata has incomplete affected fields, while the title and description identify Tenda i22 V1.0.0.3(4687). No vendor fix is named in the supplied sources. Avoid assuming code execution or patched versions without additional vendor evidence.
Mitigation direction
- Check Tenda guidance for fixed firmware or official mitigation.
- Restrict device management access to trusted administrative networks only.
- Remove internet exposure for affected Tenda i22 management interfaces.
- Replace or retire devices if no supported firmware is available.
- Monitor affected devices for unexplained crashes or service disruption.
Validation and detection
- Inventory Tenda i22 devices and record firmware versions.
- Confirm whether V1.0.0.3(4687) is present in production.
- Review firewall rules for exposed management interfaces.
- Check vulnerability scanner coverage against CVE-2022-45663.
- Validate remediation by confirming firmware or exposure changes.
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-120: 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-2022-45663 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
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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:N/I:N/A:H3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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.
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.