Buffer overflow in Tenda Ac10
CVE-2018-18729
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.013 (70.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Tenda Ac10
- Tenda Ac10 Firmware — versions 15.03.06.23_cn
- Tenda Ac15
- Tenda Ac15 Firmware — versions 15.03.05.19_cn
- Tenda Ac18
- Tenda Ac18 Firmware — versions 15.03.05.19(6318)_cn, 15.03.05.19\(6318\)_cn
- Tenda Ac7
- Tenda Ac7 Firmware — versions 15.03.06.44_cn
- Tenda Ac9
- Tenda Ac9 Firmware — versions 15.03.05.19(6318)_cn, 15.03.05.19\(6318\)_cn
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/ZIllR0/Routers/blob/master/Tenda/heapoverflow1.md (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-18729?
- CVE-2018-18729 is a critical-severity vulnerability in Tenda Ac10, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2018-10-29.
- How severe is CVE-2018-18729?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2018-18729 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.