Security readout for executives and security teams
Plain-English summary
CVE-2022-45657 is a remotely reachable buffer overflow reported in Tenda AC6 V1.0 firmware V15.03.05.19. The published scoring indicates an unauthenticated network attacker could cause a high availability impact, such as disrupting the device. The sources do not identify confirmed data theft, configuration tampering, active exploitation, or an official fix.
Executive priority
Treat as high priority where affected routers are deployed, especially at branch, remote-office, or small-site edges. The likely business impact is service disruption rather than confirmed data compromise. Prioritize exposure reduction and vendor-fix verification because public details exist and affected metadata is sparse.
Technical view
The issue is CWE-120 in the fromSetIpMacBind function, triggered through the list parameter. CVSS 3.1 is 7.5, with network attack vector, low complexity, no privileges, and no user interaction. The vector only assigns high availability impact, with no stated confidentiality or integrity impact.
Likely exposure
Exposure is most relevant for organizations or sites using Tenda AC6 V1.0 devices on firmware V15.03.05.19. Risk rises if the router administration or affected service is reachable from untrusted networks. The CVE record's structured affected-product metadata is incomplete, so confirm device model and firmware directly.
Exploitation context
The source bundle does not show CISA KEV listing or confirmed active exploitation. A public GitHub reference exists, but the provided evidence supports describing this as publicly disclosed technical detail, not confirmed in-the-wild exploitation.
Researcher notes
The record gives a precise function and parameter but does not provide normalized CPEs, vendor remediation, or exploitation confirmation. Keep analysis bounded to Tenda AC6 V1.0 V15.03.05.19 unless additional vendor evidence expands affected versions. Do not infer remote code execution from the buffer-overflow class alone.
Mitigation direction
- Inventory Tenda AC6 V1.0 devices and record firmware versions.
- Check Tenda support channels for firmware or vendor guidance.
- Restrict router management access to trusted admin networks only.
- Remove internet exposure for affected management interfaces.
- Isolate or replace affected devices if no supported fix is available.
Validation and detection
- Confirm whether any Tenda AC6 V1.0 runs V15.03.05.19.
- Check perimeter exposure for router management interfaces.
- Review router uptime, crashes, and availability events.
- Verify firewall rules limit access to trusted administrators.
- Track vendor advisories before declaring remediation complete.
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-2022-45657 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.