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CVE-2023-23912

27
FAUCET Score

CVE-2023-23912 is a remote code execution vulnerability affecting Ubiquiti EdgeRouters (v2.0.9-hotfix.5 and earlier) and UniFi Security Gateways (v4.4.56 and earlier) when DHCPv6 prefix delegation is set to dhcpv6-stateless or dhcpv6-stateful. This high-severity vulnerability (CVSS 8.8) allows an unauthenticated attacker directly connected to the WAN interface to achieve full compromise of the device. There is currently no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.4.57CPE matchmatch criteria
cpe:2.3:o:ui:usg_firmware:*:*:*:*:*:*:*:*
< 4.4.57CPE matchmatch criteria
cpe:2.3:o:ui:usg-pro-4_firmware:*:*:*:*:*:*:*:*
< 2.0.9CPE matchmatch criteria
cpe:2.3:o:ui:er-10x_firmware:*:*:*:*:*:*:*:*
2.0.9CPE matchmatch criteria
cpe:2.3:o:ui:er-10x_firmware:2.0.9:-:*:*:*:*:*:*
2.0.9CPE matchmatch criteria
cpe:2.3:o:ui:er-10x_firmware:2.0.9:hotfix2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.89%
Probability of exploitation in next 30 days
EPSS Percentile
55.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0089 is in the 68th percentile among its peer group of 1,857 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 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 0.2 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-028-028/696e4e3b-718c-4da4-9a21-965a85633b5f
ExploitPatchVendor Advisory