Netgear WPN824EXT up to 1.1.1/1.1.9 Firmware Image cryptographic issue

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.7$5k-$25k0.00

Summaryinfo

A vulnerability was found in Netgear WPN824EXT up to 1.1.1/1.1.9. It has been rated as problematic. This affects an unknown part of the component Firmware Image Handler. This manipulation causes cryptographic issue. This vulnerability is tracked as CVE-2022-38956. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Netgear WPN824EXT up to 1.1.1/1.1.9 (Wireless LAN Software). It has been declared as critical. Affected by this vulnerability is an unknown function of the component Firmware Image Handler. The manipulation with an unknown input leads to a cryptographic issue vulnerability. The CWE definition for the vulnerability is CWE-310. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An exploitable firmware downgrade vulnerability was discovered on the Netgear WPN824EXT WiFi Range Extender. An attacker can conduct a MITM attack to replace the user-uploaded firmware image with an original old firmware image. This affects Firmware 1.1.1_1.1.9 and earlier.

The weakness was disclosed 09/21/2022. It is possible to read the advisory at hackmd.io. This vulnerability is known as CVE-2022-38956 since 08/29/2022. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 05/28/2025). The attack technique deployed by this issue is T1600 according to MITRE ATT&CK.

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

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.7

VulDB Base Score: 8.1
VulDB Temp Score: 8.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Cryptographic issue
CWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/29/2022 🔍
09/21/2022 +23 days 🔍
09/21/2022 +0 days 🔍
05/28/2025 +980 days 🔍

Sourcesinfo

Vendor: netgear.com

Advisory: hackmd.io
Status: Not defined

CVE: CVE-2022-38956 (🔍)
GCVE (CVE): GCVE-0-2022-38956
GCVE (VulDB): GCVE-100-209167

Entryinfo

Created: 09/21/2022 07:58
Updated: 05/28/2025 21:09
Changes: 09/21/2022 07:58 (39), 10/21/2022 13:15 (11), 05/28/2025 21:09 (15)
Complete: 🔍
Cache ID: 216::103

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