Vulnerability in NETGEAR Cbr40
CVE-2022-27644
This vulnerability allows network-adjacent attackers to compromise the integrity of downloaded information on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the downloading of files via HTTPS. The issue results from the lack of proper validation of the certificate presented by the server. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-15797.
Vulnerability class: Improper Certificate Validation
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: 0.003 (24.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 24.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.zerodayinitiative.com/advisories/ZDI-22-520/ (VDB Entry, Third Party Advisory)
- kb.netgear.com/000064721/Security-Advisory-for-Multiple-Vulnerabilities-on-Mult… (Vendor Advisory)
Frequently asked questions
- What is CVE-2022-27644?
- CVE-2022-27644 is a high-severity vulnerability in NETGEAR Cbr40, classified under Improper Certificate Validation. CVSS score: 8.8/10. Published 2023-03-29.
- How severe is CVE-2022-27644?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2022-27644 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.