CVE-2025-57638
Buffer overflow vulnerability in Tenda AC9 1.0 via the user supplied sys.vendor configuration value.
Buffer overflow vulnerability in Tenda AC9 1.0 via the user supplied sys.vendor configuration value.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Buffer overflow vulnerability in Tenda AC9 1.0 via the user supplied sys.vendor configuration value.
- Record
CVE-2025-57638- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
EUVDEUVD-2025-30928
Buffer overflow vulnerability in Tenda AC9 1.0 via the user supplied sys.vendor configuration value.
- Record
EUVD-2025-30928- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-pjcj-p3c8-pcwx
Buffer overflow vulnerability in Tenda AC9 1.0 via the user supplied sys.vendor configuration value.
Buffer overflow vulnerability in Tenda AC9 1.0 via the user supplied sys.vendor configuration value.
- Record
GHSA-pjcj-p3c8-pcwx- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
NVD
Buffer overflow vulnerability in Tenda AC9 1.0 via the user supplied sys.vendor configuration value.
- Record
CVE-2025-57638- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-122
- Updated
- 2026-11-06
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | NVD | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-57638 is a high vulnerability (CVSS 7.5) in Tenda Ac9 Firmware, published September 23, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.40%, the 34th percentile. No source names a fixed version.