CVE-2022-26988: TP-Link TL-WDR7660 2.0.30, Mercury D196G 20200109_2.0.4, and Fast FAC1900R 20190827_2.0.2 routers have a st...
TP-Link TL-WDR7660 2.0.30, Mercury D196G 20200109_2.0.4, and Fast FAC1900R 20190827_2.0.2 routers have a stack overflow issue in `MntAte` function. Local users could get remote code execution.
Security readout for executives and security teams
Plain-English summary
This CVE describes a stack overflow in specific TP-Link, Mercury, and Fast router firmware. The reported impact is remote code execution by local users, meaning risk depends heavily on who can access the affected router locally. The public bundle does not provide a CVSS score, vendor fix, or confirmed exploitation.
Executive priority
Prioritize verification where these routers support business-critical, shared, or sensitive networks. This is not source-confirmed as actively exploited, but router RCE can create meaningful network compromise risk if affected devices remain accessible.
Technical view
CVE-2022-26988 concerns the `MntAte` function in TP-Link TL-WDR7660 2.0.30, Mercury D196G 20200109_2.0.4, and Fast FAC1900R 20190827_2.0.2. The issue is described as stack overflow leading to remote code execution for local users. CWE, CVSS, exploit maturity, and remediation details are not supplied.
Likely exposure
Exposure appears limited to the named router models and firmware versions in the CVE description. The provided structured affected-product fields are incomplete, and the sources do not establish internet-facing exploitability.
Exploitation context
The bundle says local users could achieve remote code execution, but it does not define authentication requirements, attack surface, prerequisites, or active exploitation. CISA KEV status is false in the provided data.
Researcher notes
Evidence is sparse: no CVSS, CWE, CPEs, patch statement, or exploit-status details are provided. The phrase “local users could get remote code execution” is ambiguous and should not be expanded beyond the cited CVE text.
Mitigation direction
Inventory the named router models and firmware versions.
Check vendor guidance for firmware updates or replacement advice.
Restrict local access to router management and services.
Segment untrusted users away from router administration paths.
Replace unsupported affected devices if no fix is available.
Validation and detection
Confirm router model and firmware version from device management records.
Compare findings against the three versions named in the CVE description.
Review whether untrusted local users can reach router services.
Check vendor advisories before declaring remediation complete.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
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.
description · low confidence lookup
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
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.
0CVSS vectors
3Timeline events
1ADP providers
3Source links
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
CVE publishedCVE Program
The CVE record was published.
May 10, 2022, 14:26 UTC (UTC+00:00)
CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.