High severity · published Apr 25, 2019
CVE-2018-14557
An issue was discovered on Tenda AC7 devices with firmware through V15.03.06.44_CN(AC7), AC9 devices with firmware through V15.03.05.19(6318)_CN(AC9), and AC10 devices with…
7.5
CVSS
1.4%
EPSS
No
On KEV
Description
An issue was discovered on Tenda AC7 devices with firmware through V15.03.06.44_CN(AC7), AC9 devices with firmware through V15.03.05.19(6318)_CN(AC9), and AC10 devices with firmware through V15.03.06.23_CN(AC10). A buffer overflow vulnerability exists in the router's web server (httpd). When processing the page parameters for a post request, the value is directly written with sprintf to a local variable placed on the stack, which overrides the return address of the function, a causing buffer overflow.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 73% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AF
Ac10 Firmware · Tenda
through 15.03.06.23_cn · source: NVD
AF
Ac7 Firmware · Tenda
through 15.03.06.44_cn · source: NVD
AF
Ac9 Firmware · Tenda
through 15.03.05.19\(6318\)_cn · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-14557
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-14557
Exploit
https://github.com/zsjevilhex/iot/blob/master/route/tenda/tenda-03/Tenda.md
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