Tenda AC10 16.03.10.10_multi_TDE01 /bin/httpd fromSysToolChangePwd stack-based overflow
Summary
A vulnerability categorized as critical has been discovered in Tenda AC10 16.03.10.10_multi_TDE01. This vulnerability affects the function fromSysToolChangePwd of the file /bin/httpd. The manipulation results in stack-based overflow.
This vulnerability is cataloged as CVE-2026-5550. The attack may be launched remotely. There is no exploit available.
Multiple endpoints might be affected.
Details
A vulnerability, which was classified as critical, was found in Tenda AC10 16.03.10.10_multi_TDE01. Affected is the function fromSysToolChangePwd of the file /bin/httpd. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as 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). This is going to have an impact on confidentiality, integrity, and availability.
The advisory is available at github.com. This vulnerability is traded as CVE-2026-5550. The exploitability is told to be easy. It is possible to launch the attack 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 04/05/2026).
Multiple endpoints might be affected.
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-2026-19048). If you want to get best quality of vulnerability data, you may have to visit VulDB.
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 |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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 |
|---|---|---|---|---|
| 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-2026-5550 (🔒)
GCVE (CVE): GCVE-0-2026-5550
GCVE (VulDB): GCVE-100-355314
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 #782299: Tenda AC10 V4 US_AC10V4.0si_V16.03.10.10_multi_TDE01 Stack-based Buffer Overflow (by CoreNode)
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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