Netcomm NF20MESH/NF20/NL1902 sessionKey stack-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Netcomm NF20MESH, NF20 and NL1902. Impacted is an unknown function. The manipulation of the argument sessionKey results in stack-based overflow. This vulnerability was named CVE-2022-4873. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Netcomm NF20MESH, NF20 and NL1902 (affected version unknown). It has been classified as critical. Affected is an unknown functionality. The manipulation of the argument sessionKey with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

On Netcomm router models NF20MESH, NF20, and NL1902 a stack based buffer overflow affects the sessionKey parameter. By providing a specific number of bytes, the instruction pointer is able to be overwritten on the stack and crashes the application at a known location.

The weakness was presented 01/12/2023. The advisory is available at github.com. This vulnerability is traded as CVE-2022-4873 since 01/04/2023. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 11/05/2025).

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

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
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

01/04/2023 🔍
01/12/2023 +8 days 🔍
01/12/2023 +0 days 🔍
11/05/2025 +1028 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2022-4873 (🔍)
GCVE (CVE): GCVE-0-2022-4873
GCVE (VulDB): GCVE-100-218058

Entryinfo

Created: 01/12/2023 07:52
Updated: 11/05/2025 14:20
Changes: 01/12/2023 07:52 (37), 02/04/2023 11:04 (11), 11/05/2025 14:20 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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