Security readout for executives and security teams
Plain-English summary
This CVE describes a buffer overflow in Tenda AC6V1.0 firmware V15.03.05.19 that can cause denial of service. For executives, the main business risk is router availability disruption, especially if affected devices are reachable from untrusted networks.
Executive priority
Prioritize remediation for internet-facing or business-critical routers. The issue is availability-focused, not shown to expose data, but unmanaged edge devices can disrupt operations and are often difficult to monitor.
Technical view
The record maps CVE-2022-45640 to CWE-787 with CVSS 3.1 score 7.5. The vector indicates network attackability, low complexity, no privileges, no user interaction, and high availability impact only. The description also says “local,” so exposure details should be verified against vendor and deployment context.
Likely exposure
Likely exposure is limited to environments running Tenda AC6V1.0 firmware V15.03.05.19. The source bundle does not provide complete CPE data or a vendor patch statement, so asset confirmation is required.
Exploitation context
The bundle includes a public researcher write-up reference, but it does not state known active exploitation. CISA KEV status is false in the provided data. Treat exploitability as plausible, not confirmed in the wild.
Researcher notes
Evidence is sparse. The CVE metadata lists affected vendor/product fields as n/a despite the title naming Tenda AC6V1.0 V15.03.05.19. The “local” description conflicts with the network CVSS vector; validate against the original researcher disclosure.
Mitigation direction
- Identify Tenda AC6V1.0 devices and confirm firmware version V15.03.05.19.
- Check Tenda guidance for fixed firmware or supported replacement options.
- Remove router administration interfaces from internet exposure.
- Restrict management access to trusted internal networks or VPN only.
- Monitor affected devices for crashes, reboots, or availability loss.
Validation and detection
- Inventory edge and branch routers for Tenda AC6V1.0 hardware.
- Verify firmware versions through approved management interfaces.
- Confirm external scans do not expose device management services.
- Review network monitoring for unexplained router downtime.
- Track vendor advisories because no fix is named in the bundle.
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-2022-45640 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.
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.