CVE-2016-10174: NETGEAR WNR2000v5 Router Buffer Overflow Vulnerability

Vulnerability summary

CVE-2016-10174 is a high (CVSS 10.0) Classic Buffer Overflow vulnerability in NETGEAR WNR2000v5 Router. It is known to be exploited: CISA lists it, first on 25-03-2022. EPSS estimates a 83.33% chance of exploitation in the next 30 days, higher than 99.6% of scored vulnerabilities. 5 public exploits are recorded.

Timeline

1. 30-01-2017
   PublishedVulnerability first disclosed.
2. 25-03-2022
   Added to CISA KEVNETGEAR WNR2000v5 Router Buffer Overflow Vulnerability
3. 15-04-2022
   CISA remediation dueApply updates per vendor instructions.
4. 21-10-2025
   Last modifiedVulnerability information updated.

Description

The NETGEAR WNR2000v5 router contains a buffer overflow in the hidden_lang_avi parameter when invoking the URL /apply.cgi?/lang_check.html. This buffer overflow can be exploited by an unauthenticated attacker to achieve remote code execution.

• CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.