VDB-216388 · CVE-2022-46912 · GCVE-0-2022-46912

TP-Link TL-WR841N/TL-WA841ND up to 3.13.9 Firmware Update denial of service

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.6	$0-$5k	0.00

Summaryinfo

A vulnerability was found in TP-Link TL-WR841N and TL-WA841ND up to 3.13.9 and classified as problematic. The impacted element is an unknown function of the component Firmware Update Handler. Executing a manipulation can lead to denial of service. This vulnerability appears as CVE-2022-46912. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability classified as problematic was found in TP-Link TL-WR841N and TL-WA841ND up to 3.13.9 (Router Operating System). This vulnerability affects an unknown code of the component Firmware Update Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

An issue in the firmware update process of TP-Link TL-WR841N / TL-WA841ND V7 3.13.9 and earlier allows attackers to execute arbitrary code or cause a Denial of Service (DoS) via uploading a crafted firmware image.

The weakness was presented 12/21/2022. The advisory is shared for download at hackmd.io. This vulnerability was named CVE-2022-46912 since 12/12/2022. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Router Operating System

Vendor

TP-Link

Name

Version

License

commercial

Website

Vendor: https://www.tp-link.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.6

VulDB Base Score: 4.4
VulDB Temp Score: 4.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/12/2022 🔍
12/21/2022 +9 days 🔍
12/21/2022 +0 days 🔍
04/17/2025 +847 days 🔍

Sourcesinfo

Vendor: tp-link.com

Advisory: hackmd.io
Status: Not defined

CVE: CVE-2022-46912 (🔍)
GCVE (CVE): GCVE-0-2022-46912
GCVE (VulDB): GCVE-100-216388

Entryinfo

Created: 12/21/2022 08:31
Updated: 04/17/2025 00:15
Changes: 12/21/2022 08:31 (39), 01/21/2023 10:04 (11), 04/17/2025 00:15 (16)
Complete: 🔍
Cache ID: 216::103