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CVE-2017-18837

24
FAUCET Score

CVE-2017-18837 describes a vertical privilege escalation vulnerability affecting several NETGEAR M4300 and M4200 series switches running firmware versions prior to 12.0.2.15. This allows a low-privileged attacker to gain higher privileges on the device. The vulnerability carries a CVSS v3.1 score of 7.8 (High), indicating that it is easily exploitable locally with low attack complexity, leading to high impacts on confidentiality, integrity, and availability. There is currently no public exploit code available (Metasploit, Nuclei, ExploitDB), and it is not listed in CISA's KEV catalog, suggesting it is not actively exploited in the wild. Community discussion and media coverage for this CVE are minimal, consistent with the majority of reported vulnerabilities.

Impacted Technologies

VendorProductVersion(s)CPE
< 12.0.2.15CPE matchmatch criteria
cpe:2.3:o:netgear:m4300-28g_firmware:*:*:*:*:*:*:*:*
< 12.0.2.15CPE matchmatch criteria
cpe:2.3:o:netgear:m4300-52g_firmware:*:*:*:*:*:*:*:*
< 12.0.2.15CPE matchmatch criteria
cpe:2.3:o:netgear:m4300-28g-poe\+_firmware:*:*:*:*:*:*:*:*
< 12.0.2.15CPE matchmatch criteria
cpe:2.3:o:netgear:m4300-52g-poe\+_firmware:*:*:*:*:*:*:*:*
< 12.0.2.15CPE matchmatch criteria
cpe:2.3:o:netgear:m4300-8x8f_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.30%
Probability of exploitation in next 30 days
EPSS Percentile
22.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0031 is in the 59th percentile among its peer group of 17,061 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

kb.netgear.com / 000049025/Security-Advisory-for-Vertical-Privilege-Escalation-on-Some-Fully-Managed-Switches-PSV-2017-1973
Vendor Advisory