TOTOLINK A3100R 5.9c.1527 firewall.so setMacQos Priority buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.5$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in TOTOLINK A3100R 5.9c.1527. Affected by this issue is the function setMacQos in the library /lib/cste_modules/firewall.so. Executing a manipulation of the argument Priority can lead to buffer overflow. This vulnerability is tracked as CVE-2025-45790. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in TOTOLINK A3100R 5.9c.1527. It has been declared as critical. This vulnerability affects the function setMacQos in the library /lib/cste_modules/firewall.so. The manipulation of the argument priority 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:

TOTOLINK A3100R V5.9c.1527 is vulnerable to Buffer Overflow via the priority parameter in the setMacQos interface of /lib/cste_modules/firewall.so.

The advisory is available at github.com. This vulnerability was named CVE-2025-45790 since 04/22/2025. The exploitation appears to be easy. The attack can be initiated remotely. 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 05/13/2025).

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-14037). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.5

VulDB Base Score: 8.8
VulDB Temp Score: 8.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

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

04/22/2025 🔍
05/09/2025 +17 days 🔍
05/09/2025 +0 days 🔍
05/13/2025 +4 days 🔍

Sourcesinfo

Vendor: totolink.net

Advisory: github.com
Status: Not defined

CVE: CVE-2025-45790 (🔍)
GCVE (CVE): GCVE-0-2025-45790
GCVE (VulDB): GCVE-100-308122
EUVD: 🔍

Entryinfo

Created: 05/09/2025 08:04
Updated: 05/13/2025 03:56
Changes: 05/09/2025 08:04 (55), 05/13/2025 03:56 (1)
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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