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CVE-2022-27643

HIGH
8.8
CVSS Score
Published: March 29, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 04:37 AM UTC
54 products affected across 1 vendorR6700 FirmwareR7000P FirmwareR7000 Firmware

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Severity
HIGH8.8
Exploit prediction
EPSS 25%
SSVC
No known exploit

Description

This vulnerability allows network-adjacent attackers to execute arbitrary code 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 handling of SOAP requests. When parsing the SOAPAction header, the process does not properly validate the length of user-supplied data prior to copying it to a buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15692.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

D6220 Firmware· NETGEAR
95%
v < 1.0.0.80
Affected range stops below 1.0.0.80, so it looks safe — our inference, not a vendor statement
netgear-d6220 (same device)
D6400 Firmware· NETGEAR
95%
v < 1.0.0.114
Affected range stops below 1.0.0.114, so it looks safe — our inference, not a vendor statement
netgear-d6400 (same device)
D7000V2 Firmware· NETGEAR
95%
v < 1.0.0.80
Affected range stops below 1.0.0.80, so it looks safe — our inference, not a vendor statement
netgear-d7000v2 (same device)
DC112A Firmware· NETGEAR
95%
v < 1.0.0.64
Affected range stops below 1.0.0.64, so it looks safe — our inference, not a vendor statement
EX3700 Firmware· NETGEAR
95%
v < 1.0.0.96
Affected range stops below 1.0.0.96, so it looks safe — our inference, not a vendor statement
EX3800 Firmware· NETGEAR
95%
v < 1.0.0.96
Affected range stops below 1.0.0.96, so it looks safe — our inference, not a vendor statement
netgear-ex3800 (same device)
EX6120 Firmware· NETGEAR
95%
v < 1.0.0.68
Affected range stops below 1.0.0.68, so it looks safe — our inference, not a vendor statement
EX6130 Firmware· NETGEAR
95%
v < 1.0.0.48
Affected range stops below 1.0.0.48, so it looks safe — our inference, not a vendor statement
netgear-ex6130 (same device)
R6400· NETGEAR
95%
v < 1.0.1.78v < 1.0.4.126
Affected range stops below 1.0.1.78, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.0.4.126, so it looks safe — our inference, not a vendor statement
R6700 Firmware· NETGEAR
95%
v < 1.0.4.126
Affected range stops below 1.0.4.126, so it looks safe — our inference, not a vendor statement
netgear-r6700 (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor Advisory
Source: [email protected]
https://kb.netgear.com/000064720/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Multiple-Products-PSV-2021-0323
Third Party AdvisoryVDB Entry
Source: [email protected]
https://www.zerodayinitiative.com/advisories/ZDI-22-519/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGH[email protected]
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-120

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