CVE-2020-27861
NETGEAR · published 2021-02-12
Source record Collected from the National Vulnerability Database (NVD)
Description
Description by Zero Day Initiative via the CVE Program.
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR Orbi 2.5.1.16 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the UA_Parser utility. A crafted Host Name option in a DHCP request can trigger execution of a system call composed from a user-supplied string. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-11076.
Filed by Zero Day Initiative; not a statement by NETGEAR.
Status at the source
- NVD status: Modified
Affected products, as the source lists them
| Vendor | Product | Versions |
|---|---|---|
| NETGEAR | Orbi | 2.5.1.16: affected |
Products named in NVD's CPE match criteria (39)
cpe:2.3:o:netgear:cbk40_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:cbk43_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:cbr40_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:ex6200_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:ex7700_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:ex8000_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk12_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk13_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk14_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk15_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbr10_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbs10_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk20w_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk23w_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk20_router_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk20_satellite_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk22_router_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk22_satellite_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk23_router_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk23_satellite_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbr20_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbs20_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk30_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk33_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk40_router_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk40_satellite_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk43_router_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk43_satellite_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk43s_router_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk43s_satellite_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk44_router_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk44_satellite_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbr40_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbs40_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk50_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk50v_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbk52w_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbr50_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:netgear:rbs50_firmware:*:*:*:*:*:*:*:*
DeSpy has not checked any unit, hardware revision or firmware. A product missing here is not a statement that it is unaffected.
Scores, as their sources published them
- CVSS 3.1: 8.8 HIGH — as published by NIST (Primary)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 3.0: 8.8 HIGH — as published by Zero Day Initiative (Secondary)
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0: 8.3 HIGH — as published by NIST (Primary)
AV:A/AC:L/Au:N/C:C/I:C/A:C
DeSpy does not score records. These are the sources' own values.
Weaknesses
Sources
References the source lists
- https://kb.netgear.com/000062507/Security-Advisory-for-Unauthenticated-Command-Injection-Vulnerability-on-Some-Extenders-and-Orbi-WiFi-Systems
- https://www.zerodayinitiative.com/advisories/ZDI-20-1430/
- https://kb.netgear.com/000062507/Security-Advisory-for-Unauthenticated-Command-Injection-Vulnerability-on-Some-Extenders-and-Orbi-WiFi-Systems
- https://www.zerodayinitiative.com/advisories/ZDI-20-1430/
Source dates: published 2021-02-12, last changed 2026-06-17. DeSpy's copy of this version is dated 2026-09-28.
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