Security readout for executives and security teams
Plain-English summary
This CVE describes a buffer overflow in a Tenda AC6 V1.0 router firmware function handling Wi-Fi scheduling. The published scoring points to remote, unauthenticated availability impact, meaning a vulnerable device could be crashed or disrupted. The provided sources do not show data theft, integrity impact, vendor patch details, or confirmed exploitation in the wild.
Executive priority
Prioritize any exposed or business-critical Tenda AC6 devices because the likely impact is service disruption. This is not currently supported as a breach or data-loss issue by the supplied sources, but remote unauthenticated availability risk warrants prompt exposure reduction and firmware review.
Technical view
CVE-2022-45658 is a CWE-120 buffer overflow in the schedEndTime parameter of setSchedWifi in Tenda AC6V1.0 V15.03.05.19. CVSS 3.1 is 7.5, AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. Source evidence supports denial-of-service risk, not confirmed code execution or compromise of confidentiality/integrity.
Likely exposure
Exposure is most likely where Tenda AC6 V1.0 devices run firmware V15.03.05.19 and the relevant management or API surface is reachable from untrusted networks. The CVE record’s affected product metadata is incomplete, so asset validation must rely on device model and firmware checks.
Exploitation context
The CVE is not listed as KEV in the supplied bundle, and no cited source confirms active exploitation. Public technical detail exists in a GitHub reference, so defenders should treat internet-reachable management surfaces as higher risk, while avoiding assumptions beyond denial-of-service impact.
Researcher notes
The source bundle is thin: CVE metadata, CVSS, CWE-120 classification, and one public researcher reference. Affected CPE data and vendor remediation details are absent. Treat RCE, exploit-in-the-wild, and patch availability as unconfirmed unless later vendor or authoritative sources substantiate them.
Mitigation direction
- Check Tenda guidance for firmware updates or vendor-recommended mitigations.
- Remove router administration interfaces from internet exposure.
- Restrict management access to trusted LAN or VPN users only.
- Segment affected devices from critical business services where possible.
- Replace unsupported devices if no fixed firmware is available.
Validation and detection
- Inventory Tenda AC6 V1.0 devices across offices and remote sites.
- Confirm firmware version against V15.03.05.19.
- Verify management interfaces are not exposed to the public internet.
- Review device stability, reboot history, and availability alerts.
- Track CVE and vendor advisory updates for remediation status.
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
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Open ATT&CK lookupCVE-2022-45658 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.