Wavlink AC3000 M33A8.V5030.210505 qos.cgi qos_settings qos_dat buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Wavlink AC3000 M33A8.V5030.210505. It has been declared as critical. Affected is the function qos_settings of the file qos.cgi. Executing a manipulation of the argument qos_dat can lead to buffer overflow. This vulnerability appears as CVE-2024-39802. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Wavlink AC3000 M33A8.V5030.210505. It has been declared as critical. This vulnerability affects the function qos_settings of the file qos.cgi. The manipulation of the argument qos_dat with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Multiple buffer overflow vulnerabilities exist in the qos.cgi qos_settings() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to stack-based buffer overflow. An attacker can make an authenticated HTTP request to trigger these vulnerabilities.A buffer overflow vulnerability exists in the `qos_dat` POST parameter.

The advisory is available at talosintelligence.com. This vulnerability was named CVE-2024-39802 since 06/28/2024. The exploitation appears to be easy. The attack can be initiated remotely. Additional levels of successful authentication are necessary for exploitation. 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 08/22/2025).

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

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Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.8

VulDB Base Score: 7.2
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.2
NVD Vector: 🔍

CNA Base Score: 9.1
CNA Vector (talos): 🔍

CVSSv2info

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

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / 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

06/28/2024 🔍
01/14/2025 +200 days 🔍
01/14/2025 +0 days 🔍
08/22/2025 +220 days 🔍

Sourcesinfo

Advisory: TALOS-2024-2049
Status: Not defined

CVE: CVE-2024-39802 (🔍)
GCVE (CVE): GCVE-0-2024-39802
GCVE (VulDB): GCVE-100-291598

Entryinfo

Created: 01/14/2025 16:05
Updated: 08/22/2025 04:01
Changes: 01/14/2025 16:05 (65), 08/22/2025 04:01 (12)
Complete: 🔍
Cache ID: 216::103

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