HOMEVULNERABILITIESCVE-2017-18849
HIGH

CVE-2017-18849

CWE-74Published: April 20, 2020· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

Certain NETGEAR devices are affected by command injection. This affects D6220 before 1.0.0.26, D6400 before 1.0.0.60, D8500 before 1.0.3.29, R6250 before 1.0.4.12, R6400 before 1.01.24, R6400v2 before 1.0.2.30, R6700 before 1.0.1.22, R6900 before 1.0.1.22, R6900P before 1.0.0.56, R7000 before 1.0.9.4, R7000P before 1.0.0.56, R7100LG before 1.0.0.32, R7300DST before 1.0.0.54, R7900 before 1.0.1.18, R8000 before 1.0.3.44, R8300 before 1.0.2.100_1.0.82, and R8500 before 1.0.2.100_1.0.82.

NVD Source

Technical Analysis

CVE-2017-18849 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

netgear32 product(s)
d6220 firmwared6220d6400 firmwared6400d8500 firmwared8500r6250 firmwarer6250r6400 firmwarer6400r6700 firmwarer6700+20
Source: NVD CPE · 33 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://kb.netgear.com/000048999/Security-Advisory-for-Command-Injection-on-Some-Routers-and-Modem-Routers-PSV-2017-1209
ADVISORYhttps://kb.netgear.com/000048999/Security-Advisory-for-Command-Injection-on-Some-Routers-and-Modem-Routers-PSV-2017-1209

All References (2)

→
https://kb.netgear.com/000048999/Security-Advisory-for-Command-Injection-on-Some-Routers-and-Modem-Routers-PSV-2017-1209Vendor Advisory
→
https://kb.netgear.com/000048999/Security-Advisory-for-Command-Injection-on-Some-Routers-and-Modem-Routers-PSV-2017-1209Vendor Advisory

Quick Facts

CVE IDCVE-2017-18849
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-74
CISA KEVNo
Affected1 vendor(s)
PublishedApr 20, 2020

Related CVEs (CWE-74)

CVE-2022-24760
10.0
CVE-2014-8423
10.0
CVE-2023-30547
10.0
CVE-2024-38366
10.0
CVE-2025-20265
10.0
CVE-2023-32314
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Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-18849 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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