Buffer overflow in Tenda Ac18
CVE-2025-9023
A vulnerability has been found in Tenda AC7 and AC18 15.03.05.19/15.03.06.44. Affected is the function formSetSchedLed of the file /goform/SetLEDCfg. The manipulation of the argument Time leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (55.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: +0.000
Affected products
- Tenda Ac18 — versions 15.03.05.19, 15.03.06.44
- Tenda Ac18 Firmware — versions 15.03.05.19
- Tenda Ac7 — versions 15.03.05.19, 15.03.06.44
- Tenda Ac7 Firmware — versions 15.03.06.44
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/zezhifu1/cve_report/blob/main/AC7/formsetschedled.md (related, Exploit, Third Party Advisory)
- github.com/zezhifu1/cve_report/blob/main/AC18/formsetschedled.md (Exploit, Third Party Advisory, exploit)
- www.tenda.com.cn/ (Product, product)
Frequently asked questions
- What is CVE-2025-9023?
- CVE-2025-9023 is a high-severity vulnerability in Tenda Ac18, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2025-08-15.
- How severe is CVE-2025-9023?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2025-9023 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.