Buffer overflow in Tenda Ac10
CVE-2018-18709
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. It is a buffer overflow vulnerability in the router's web server -- httpd. When processing the "firewallEn" parameter for a post request, the value is directly used in a strcpy to a local variable placed on the stack, which overrides the return address of the function.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.011 (65.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · 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)
References
- github.com/zsjevilhex/iot/blob/master/route/tenda/tenda-08/Tenda.md (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-18709?
- CVE-2018-18709 is a high-severity vulnerability in Tenda Ac10, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2018-10-29.
- How severe is CVE-2018-18709?
- High severity. CVSS v3 base score is 7.5 out of 10.