---
id: CVE-2022-26987
title: >-
  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 `MmtAtePrase` function
summary: >-
  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 `MmtAtePrase` function.
  Local users could get remote code execution.
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-787
vendor: tp-link
product: tl-wdr7660_firmware
affected:
  - tl-wdr7660_firmware = 2.0.30
  - tl-wdr7661_firmware
  - tl-wdr7620_firmware
  - tl-wdr5660_firmware
  - mercury_d196g_firmware = 20200109_2.0.4
  - fac1900r_firmware = 20190827_2.0.2
published: '2022-05-10'
updated: '2026-07-05'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2022-26987'
references:
  - url: >-
      https://drive.google.com/file/d/1SnNoqRlJiBD673UROLwdgg_roMOneVR9/view?usp=sharing
    label: cve@mitre.org
  - url: 'https://github.com/GANGE666'
    label: cve@mitre.org
  - url: 'http://tp-link.com'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://drive.google.com/file/d/1SnNoqRlJiBD673UROLwdgg_roMOneVR9/view?usp=sharing
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://github.com/GANGE666'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.01419
epssPercentile: 0.71677
ingestedAt: '2026-07-06T17:03:24.367Z'
---

## Overview

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 `MmtAtePrase` function. Local users could get remote code execution.

## Affected

- `tl-wdr7660_firmware = 2.0.30`
- `tl-wdr7661_firmware`
- `tl-wdr7620_firmware`
- `tl-wdr5660_firmware`
- `mercury_d196g_firmware = 20200109_2.0.4`
- `fac1900r_firmware = 20190827_2.0.2`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.