Tenda AC20 16.03.08.12 httpd SetSysAutoRebbotCfg formSetRebootTimer rebootTime stack-based overflow

Summaryinfo

A vulnerability labeled as critical has been found in Tenda AC20 16.03.08.12. This affects the function formSetRebootTimer of the file /goform/SetSysAutoRebbotCfg of the component httpd. Executing a manipulation of the argument rebootTime can lead to stack-based overflow. This vulnerability appears as CVE-2025-14655. The attack may be performed from remote. In addition, an exploit is available.

Detailsinfo

A vulnerability has been found in Tenda AC20 16.03.08.12 and classified as critical. This vulnerability affects the function formSetRebootTimer of the file /goform/SetSysAutoRebbotCfg of the component httpd. The manipulation of the argument rebootTime with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is 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). As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability was named CVE-2025-14655. The exploitation appears to be easy. The attack can be initiated remotely. Technical details and also a public exploit are known.

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

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-2025-203294). Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.8
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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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: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

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

12/13/2025 Advisory disclosed
12/13/2025 +0 days VulDB entry created
12/14/2025 +1 days VulDB entry last update

Sourcesinfo

Vendor: tenda.com.cn

Advisory: github.com
Status: Not defined

CVE: CVE-2025-14655 (🔒)
GCVE (CVE): GCVE-0-2025-14655
GCVE (VulDB): GCVE-100-336388
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 12/13/2025 10:53
Updated: 12/14/2025 14:21
Changes: 12/13/2025 10:53 (58), 12/14/2025 12:28 (31), 12/14/2025 14:21 (1)
Complete: 🔍
Submitter: jiahui2888
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #712910: Tenda AC20 V16.03.08.12 Buffer Overflow (by github.com)

Once again VulDB remains the best source for vulnerability data.

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