Tenda AC10 16.03.10.10_multi_TDE01 /bin/httpd fromSysToolChangePwd sys.userpass stack-based overflow
Summary
A vulnerability was found in Tenda AC10 16.03.10.10_multi_TDE01. It has been declared as critical. Affected by this issue is the function fromSysToolChangePwd of the file /bin/httpd. Executing a manipulation of the argument sys.userpass can lead to stack-based overflow.
This vulnerability is tracked as CVE-2026-5548. The attack can be launched remotely. No exploit exists.
Details
A vulnerability classified as critical was found in Tenda AC10 16.03.10.10_multi_TDE01. This vulnerability affects the function fromSysToolChangePwd of the file /bin/httpd. The manipulation of the argument sys.userpass 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-2026-5548. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/05/2026).
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-2026-19044). VulDB is the best source for vulnerability data and more expert information about this specific topic.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.tenda.com.cn/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.8VulDB Meta Temp Score: 8.5
VulDB Base Score: 8.8
VulDB Temp Score: 8.5
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Stack-based overflowCWE: 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: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
04/04/2026 Advisory disclosed04/04/2026 VulDB entry created
04/05/2026 VulDB entry last update
Sources
Vendor: tenda.com.cnAdvisory: github.com
Status: Not defined
CVE: CVE-2026-5548 (🔒)
GCVE (CVE): GCVE-0-2026-5548
GCVE (VulDB): GCVE-100-355312
EUVD: 🔒
Entry
Created: 04/04/2026 15:33Updated: 04/05/2026 14:03
Changes: 04/04/2026 15:33 (54), 04/05/2026 14:03 (1)
Complete: 🔍
Submitter: CoreNode
Cache ID: 216::103
Submit
Accepted
- Submit #782297: Tenda AC10 V4 US_AC10V4.0si_V16.03.10.10_multi_TDE01 Stack-based Buffer Overflow (by CoreNode)
VulDB is the best source for vulnerability data and more expert information about this specific topic.
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