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Ac1750 Firmware CVE-2020-28347

CRITICAL
OS Command Injection (CWE-78)
2020-11-08 cve@mitre.org
9.8
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization OS command sanitization, avoid shell exec
MITRE ATT&CK

2 techniques across 1 tactic: Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available.

Exploit ScenarioDerived

A remote attacker could execute arbitrary operating system commands on the host by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

Emergency Immediate action required. Why: CRITICAL + EPSS > 30%, no patch available.
No patch listed yet 73.8% exploitation probability (EPSS)

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AnalysisAI

tdpServer on TP-Link Archer A7 AC1750 devices before 201029 allows remote attackers to execute arbitrary code via the slave_mac parameter. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. tdpServer on TP-Link Archer A7 AC1750 devices before 201029 allows remote attackers to execute arbitrary code via the slave_mac parameter. NOTE: this issue exists because of an incomplete fix for CVE-2020-10882 in which shell quotes are mishandled. Affected products include: Tp-Link Ac1750 Firmware. Version information: before 201029.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

tdpServer on TP-Link Archer A7 AC1750 devices before 201029 allows remote attackers to execute arbitrary code via the slave_mac parameter. NOTE: this issue exists because of an incomplete fix for CVE-2020-10882 in which shell quotes are mishandled.

Threat Intelligence Overview

EPSS Score
73.8%
Top 1% exploitable
Exploit
POC
Public exploit code exists
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC Yes
EPSS 73.8%
Patch available No
Active threat Yes
Deciding rule
CRITICAL + EPSS > 30%, no patch available
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Immediate
Exploitation· derived
Active
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
High

Priority Score

158
Low Medium High Critical
KEV: 0
EPSS: +74
CVSS: +49
PoC: +20
Weaponized: +15
Threat intel: 0
Gov advisory: 0

Attack Technique

OS command injection occurs when an application passes unsanitized user input directly into system shell commands.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)NVD

cpe:2.3:o:tp-link:ac1750_firmware:*:*:*:*:*:*:*:*
CVE-2020-10884 HIGH POC
8.8 Mar 25

This vulnerability allows network-adjacent attackers execute arbitrary code on affected installations of TP-Link Archer

CVE-2020-10882 HIGH POC
8.8 Mar 25

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Arch

CVE-2020-10883 HIGH POC
7.8 Mar 25

This vulnerability allows local attackers to escalate privileges on affected installations of TP-Link Archer A7 Firmware

CVE-2020-10888 CRITICAL
9.8 Mar 25

This vulnerability allows remote attackers to bypass authentication on affected installations of TP-Link Archer A7 Firmw

CVE-2020-10887 CRITICAL
9.8 Mar 25

This vulnerability allows a firewall bypass on affected installations of TP-Link Archer A7 Firmware Ver: 190726 AC1750 r

CVE-2020-10886 CRITICAL
9.8 Mar 25

This vulnerability allows remote attackers to execute arbitrary code on affected installations of TP-Link Archer A7 Firm

CVE-2020-10885 CRITICAL
9.8 Mar 25

This vulnerability allows remote attackers to execute arbitrary code on affected installations of TP-Link Archer A7 Firm

CVE-2020-10881 CRITICAL
9.8 Mar 25

This vulnerability allows remote attackers to execute arbitrary code on affected installations of TP-Link Archer A7 Firm

CVE-2022-24354 HIGH
8.8 Feb 18

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link AC17

CVE-2021-27246 HIGH
8.0 Apr 14

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Arch

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