CVE-2018-18729
There is a heap-based buffer overflow vulnerability in the router's web server -- httpd.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.35%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered on Tenda AC7 V15.03.06.44_CN, AC9 V15.03.05.19(6318)_CN, AC10 V15.03.06.23_CN, AC15 V15.03.05.19_CN, and AC18 V15.03.05.19(6318)_CN devices. There is a heap-based buffer overflow vulnerability in the router's web server -- httpd. While processing the 'mac' parameter for a post request, the value is directly used in a strcpy to a variable placed on the heap, which can leak sensitive information or even hijack program control flow.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.35% probability · 70th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- tenda/ac7 firmware · tenda/ac9 firmware · tenda/ac10 firmware · tenda/ac15 firmware · tenda/ac18 firmware
- Source
- cve@mitre.org
References
- https://github.com/ZIllR0/Routers/blob/master/Tenda/heapoverflow1.mdExploit, Third Party Advisory
- https://github.com/ZIllR0/Routers/blob/master/Tenda/heapoverflow1.mdExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.