Tenda AC21 16.03.08.16 SetSysAutoRebbotCfg rebootTime 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 has been found in Tenda AC21 16.03.08.16 and classified as critical. Impacted is an unknown function of the file /goform/SetSysAutoRebbotCfg. Performing a manipulation of the argument rebootTime results in buffer overflow. This vulnerability was named CVE-2025-65222. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability classified as critical has been found in Tenda AC21 16.03.08.16. This affects an unknown part of the file /goform/SetSysAutoRebbotCfg. The manipulation of the argument rebootTime with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Tenda AC21 V16.03.08.16 is vulnerable to Buffer Overflow via the rebootTime parameter of /goform/SetSysAutoRebbotCfg.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2025-65222 since 11/18/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/20/2025).

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

Type

Vendor

Name

Version

License

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

11/18/2025 CVE reserved
11/20/2025 +2 days Advisory disclosed
11/20/2025 +0 days VulDB entry created
11/20/2025 +0 days VulDB entry last update

Sourcesinfo

Vendor: tenda.com.cn

Advisory: github.com
Status: Not defined

CVE: CVE-2025-65222 (🔒)
GCVE (CVE): GCVE-0-2025-65222
GCVE (VulDB): GCVE-100-333063

Entryinfo

Created: 11/20/2025 16:54
Changes: 11/20/2025 16:54 (55)
Complete: 🔍
Cache ID: 216::103

Submitinfo

Duplicate

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