Security readout for executives and security teams
Plain-English summary
CVE-2022-45672 is a reported buffer overflow in Tenda i22 firmware V1.0.0.3(4687). The published CVSS vector indicates a remote, unauthenticated attacker could cause availability impact. Treat internet-exposed or untrusted-network-exposed devices as higher urgency, but the source bundle does not name a vendor patch.
Executive priority
Prioritize exposed Tenda i22 devices because the issue is remotely reachable and unauthenticated with high availability impact. This is not KEV-listed in the provided data, so urgency should be highest for internet-facing or operationally critical deployments.
Technical view
The CVE describes CWE-120 buffer overflow behavior in the formWx3AuthorizeSet function. CVSS 3.1 is 7.5: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, indicating network reachability, low complexity, no privileges, no user interaction, and availability-only impact. Normalized affected product metadata is incomplete in the record.
Likely exposure
Likely exposure is limited to environments running Tenda i22 firmware V1.0.0.3(4687). Risk is highest where the device management surface is reachable from the internet, guest networks, or other untrusted segments. The CVE record’s affected vendor/product fields are incomplete.
Exploitation context
The source bundle does not show CISA KEV listing or confirmed active exploitation. A public GitHub reference is listed, but the bundle does not establish exploitation in the wild. The CVSS vector supports remote unauthenticated availability impact, not confidentiality or integrity impact.
Researcher notes
Evidence is sparse. The record identifies a function-level buffer overflow and CVSS vector, but affected CPEs, patch status, exploit maturity, and authoritative vendor remediation are not provided. Validate firmware, reachability, and vendor status before making broad exposure claims.
Mitigation direction
- Check Tenda or device-owner guidance for fixed firmware or replacement recommendations.
- Remove device management access from the public internet.
- Restrict access to trusted admin networks or VPN only.
- Segment affected devices from guest and untrusted networks.
- Replace or retire devices if no supported firmware fix exists.
Validation and detection
- Inventory Tenda i22 devices and confirm firmware version V1.0.0.3(4687).
- Verify management interfaces are not internet reachable.
- Review vendor support channels for firmware or advisory updates.
- Monitor affected devices for unexpected crashes, resets, or availability loss.
- Document compensating controls where patch status is unknown.
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-2022-45672 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.