CVE-2020-28041

MEDIUM
6.5
CVSS Score
Published: November 1, 2020 at 03:29 AM UTC
Updated: June 17, 2026 at 03:10 AM UTC
2 products affected across 1 vendorNighthawk R7000 FirmwareNighthawk R7000

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Severity
MEDIUM6.5
Exploit prediction
EPSS 2%

Description

The SIP ALG implementation on NETGEAR Nighthawk R7000 1.0.9.64_10.2.64 devices allows remote attackers to communicate with arbitrary TCP and UDP services on a victim's intranet machine, if the victim visits an attacker-controlled web site with a modern browser, aka NAT Slipstreaming. This occurs because the ALG takes action based on an IP packet with an initial REGISTER substring in the TCP data, and the correct intranet IP address in the subsequent Via header, without properly considering that connection progress and fragmentation affect the meaning of the packet data.

Affected

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

netgear-nighthawk-r7000 (same device)
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

x_refsource_MISCThird Party Advisory
https://github.com/samyk/slipstream
x_refsource_MISCExploitThird Party Advisory
https://news.ycombinator.com/item?id=24956616
x_refsource_MISCExploitThird Party Advisory
https://news.ycombinator.com/item?id=24958281
x_refsource_MISCExploitThird Party Advisory
https://samy.pl/slipstream/

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-276

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