Security readout for executives and security teams
Plain-English summary
CVE-2022-43105 is a critical memory corruption issue reported in Tenda AC23 firmware V16.03.07.45_cn. A network attacker may be able to trigger a stack overflow through guest Wi-Fi settings without authentication or user interaction, creating a risk of router compromise, service disruption, or unauthorized changes.
Executive priority
Treat this as urgent for any internet-exposed or business-critical Tenda AC23 deployment. The score and unauthenticated network attack profile justify rapid inventory, exposure reduction, and vendor-fix verification, even though active exploitation is not proven by the supplied sources.
Technical view
The CVE describes a stack overflow in the fromSetWifiGusetBasic function through the shareSpeed parameter. It is classified as CWE-787 and scored CVSS 3.1 9.8: network-accessible, low complexity, no privileges, no user interaction, with high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most relevant where Tenda AC23 devices run firmware V16.03.07.45_cn and expose affected router services to untrusted networks. The source bundle does not provide normalized CPEs, broader version ranges, or confirmation that other Tenda models are affected.
Exploitation context
The CVE is not listed as KEV in the supplied bundle, so active exploitation is not established here. A public GitHub research reference is cited, but the bundle does not name an official patch, mitigation, or exploitation-in-the-wild evidence.
Researcher notes
The cited details are sparse: affected metadata is not normalized, no CPEs are supplied, and no fix is identified. Use the CVE description and GitHub reference to guide defensive validation, but avoid expanding scope beyond Tenda AC23 V16.03.07.45_cn without additional evidence.
Mitigation direction
- Inventory Tenda AC23 routers and identify firmware versions.
- Check Tenda guidance for fixed firmware or replacement direction.
- Remove management interfaces from internet or untrusted network exposure.
- Limit administrative access to trusted management networks only.
- Replace affected devices if no vendor-supported fix is available.
Validation and detection
- Confirm whether any Tenda AC23 device runs V16.03.07.45_cn.
- Review network exposure of router management and guest Wi-Fi configuration services.
- Check vendor advisories or firmware notes for CVE-2022-43105 coverage.
- Review device logs for unexpected reboots or configuration 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-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-2022-43105 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.