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CVE-2023-38034

27
FAUCET Score

CVE-2023-38034 is a critical command injection vulnerability in the DHCP Client function of UniFi Access Points (versions 6.5.53 and earlier) and Switches (versions 6.5.32 and earlier, excluding the Flex Mini). This flaw allows for unauthenticated remote code execution (RCE) with a CVSS score of 9.8, indicating a severe impact on confidentiality, integrity, and availability. While there is no known active exploitation, public exploit code, or significant community discussion, immediate patching to UniFi AP firmware 6.5.62+ and Switch firmware 6.5.59+ is strongly recommended to mitigate this high-risk vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 6.5.53CPE matchmatch criteria
cpe:2.3:o:ui:unifi_uap_firmware:*:*:*:*:*:*:*:*
<= 6.5.32CPE matchmatch criteria
cpe:2.3:o:ui:unifi_switch_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.3HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.6
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.02%
Probability of exploitation in next 30 days
EPSS Percentile
59.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0102 is in the 45th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 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

community.ui.com / releases/Security-Advisory-Bulletin-035-035/91107858-9884-44df-b1c6-63c6499f6e56
Issue TrackingVendor Advisory