8.0
HIGH
CVE-2021-27246
TP-Link Archer A7 Router Arbitrary Code Execution ( Authentication Bypass)
Description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Archer A7 AC1750 1.0.15 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of MAC addresses by the tdpServer endpoint. A crafted TCP message can write stack pointers to the stack. An attacker can leverage this vulnerability to execute code in the context of the root user. Was ZDI-CAN-12306.

INFO

Published Date :

April 14, 2021, 4:15 p.m.

Last Modified :

April 22, 2021, 5:45 p.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

2.1
Public PoC/Exploit Available at Github

CVE-2021-27246 has a 15 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-27246 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Tp-link ac1750_firmware
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-27246.

URL Resource
https://www.zerodayinitiative.com/advisories/ZDI-21-215/ Third Party Advisory VDB Entry

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Updated: 4 days, 20 hours ago
0 stars 2 fork 2 watcher
Born at : Nov. 17, 2024, 11:53 a.m. This repo has been linked 414 different CVEs too.

这是一个每天同步Vulnerability-Wiki中docs-base中内容的项目

HTML

Updated: 2 months ago
0 stars 0 fork 0 watcher
Born at : Sept. 20, 2024, 3:27 a.m. This repo has been linked 203 different CVEs too.

All CVE - PoC in GitHub

poc proofofconcept tester allcve cvegithub cvenew cvepoc cveupdate

Updated: 2 months, 3 weeks ago
5 stars 2 fork 2 watcher
Born at : March 22, 2024, 3:58 p.m. This repo has been linked 928 different CVEs too.

None

Updated: 8 months, 1 week ago
1 stars 0 fork 0 watcher
Born at : March 11, 2024, 1:21 p.m. This repo has been linked 930 different CVEs too.

None

CSS HTML JavaScript

Updated: 9 months, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : Feb. 2, 2024, 2:11 p.m. This repo has been linked 494 different CVEs too.

A Common Vulnerability PoC Knowledge Base一个普遍漏洞POC知识库

vulnerability

Updated: 4 months, 1 week ago
17 stars 6 fork 6 watcher
Born at : June 24, 2023, 3:12 p.m. This repo has been linked 232 different CVEs too.

None

Updated: 1 year, 7 months ago
0 stars 2 fork 2 watcher
Born at : April 8, 2023, 6:19 a.m. This repo has been linked 923 different CVEs too.

None

Updated: 9 months, 1 week ago
20 stars 3 fork 3 watcher
Born at : Feb. 14, 2023, 6:10 p.m. This repo has been linked 921 different CVEs too.

None

Updated: 9 months ago
2 stars 2 fork 2 watcher
Born at : Nov. 25, 2022, 5:43 p.m. This repo has been linked 930 different CVEs too.

None

Updated: 4 months, 3 weeks ago
8 stars 1 fork 1 watcher
Born at : June 21, 2022, 7:45 a.m. This repo has been linked 943 different CVEs too.

一个漏洞POC知识库 目前数量 1000+

poc

Updated: 2 months, 2 weeks ago
3417 stars 682 fork 682 watcher
Born at : Feb. 20, 2022, 6:43 a.m. This repo has been linked 405 different CVEs too.

None

Updated: 2 months, 2 weeks ago
66 stars 14 fork 14 watcher
Born at : Oct. 13, 2021, 4:56 a.m. This repo has been linked 175 different CVEs too.

None

Updated: 8 months, 2 weeks ago
33 stars 3 fork 3 watcher
Born at : March 12, 2021, 12:22 p.m. This repo has been linked 1063 different CVEs too.

None

Shell Python

Updated: 3 months, 1 week ago
42 stars 4 fork 4 watcher
Born at : March 1, 2021, 4:45 p.m. This repo has been linked 1 different CVEs too.

Some Vulnerability in the some protocol are collected.

vulnerabilities protocol security

Updated: 3 months, 3 weeks ago
92 stars 11 fork 11 watcher
Born at : July 16, 2020, 6:43 p.m. This repo has been linked 31 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-27246 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-27246 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Apr. 22, 2021

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:A/AC:M/Au:N/C:C/I:C/A:C)
    Added CVSS V3.1 NIST AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Changed Reference Type https://www.zerodayinitiative.com/advisories/ZDI-21-215/ No Types Assigned https://www.zerodayinitiative.com/advisories/ZDI-21-215/ Third Party Advisory, VDB Entry
    Added CPE Configuration AND OR *cpe:2.3:o:tp-link:ac1750_firmware:1.0.15:*:*:*:*:*:*:* OR cpe:2.3:h:tp-link:ac1750:a7:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-27246 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-27246 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.13 }} -0.02%

score

0.47194

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability