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CVE-2017-18822

26
FAUCET Score

CVE-2017-18822 describes a vertical privilege escalation vulnerability affecting several NETGEAR M4300 and M4200 series switch models running firmware versions prior to 12.0.2.15. This flaw allows a local, low-privileged attacker to gain elevated privileges on the affected device. With a CVSS v3.1 score of 7.8 (HIGH), the vulnerability has a low attack complexity and can lead to high impacts on confidentiality, integrity, and availability. There is currently no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

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
0.37%
Probability of exploitation in next 30 days
EPSS Percentile
29.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 68th percentile among its peer group of 17,070 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 / 000049043/Security-Advisory-for-Vertical-Privilege-Escalation-on-Some-Fully-Managed-Switches-PSV-2017-1944
Vendor Advisory