Vulnerability in NETGEAR Br200
CVE-2021-27254
This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R7800. Authentication is not required to exploit this vulnerability. The specific flaw exists within the apply_save.cgi endpoint. This issue results from the use of hard-coded encryption key. An attacker can leverage this vulnerability to execute arbitrary code in the context of root. Was ZDI-CAN-12287.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (41.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000
Affected products
Weakness classification (CWE)
References
- www.zerodayinitiative.com/advisories/ZDI-21-252/ (VDB Entry, Third Party Advisory)
- kb.netgear.com/000062883/Security-Advisory-for-Multiple-Vulnerabilities-on-Some… (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-27254?
- CVE-2021-27254 is a high-severity vulnerability in NETGEAR Br200, classified under Use of Hard-coded Password. CVSS score: 8.8/10. Published 2021-03-05.
- How severe is CVE-2021-27254?
- High severity. CVSS v3 base score is 8.8 out of 10.