CVE-2021-35395 · netVigilance record NV21-0267

Realtek AP-Router SDK Buffer Overflow

past due

What to do

Apply updates per vendor instructions.

CISA deadline 2021-11-17 · passed 4 years 9 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA

What happened

Realtek AP-Router SDK HTTP web server boa contains a buffer overflow vulnerability due to unsafe copies of some overly long parameters submitted in the form that lead to denial-of-service (DoS).

Who is affected

Realtek AP-Router SDK. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.

Weakness class: CWE-20, CWE-122.

Timeline

2021-11-03
Added to CISA KEVExploitation in the wild confirmed by CISA
2021-11-17
CISA remediation deadlinepassed 4 years 9 months ago

Sources

NVD entry for CVE-2021-35395 nvd.nist.gov/vuln/detail/CVE-2021-35395
CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2021-35395