CVE-2023-23119

5.9 mediumEPSS 0.3%

Medium (5.9) in ui af-2x firmware. EPSS 0.3% chance of exploitation in the next 30 days.

The use of the cyclic redundancy check (CRC) algorithm for integrity check during firmware update makes Ubiquiti airFiber AF2X Radio firmware version 3.2.2 and earlier vulnerable to firmware modification attacks. An attacker can conduct a man-in-the-middle (MITM) attack to modify the new firmware image and bypass the checksum verification.

Severity

CVSS 3.1

5.9 medium

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

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 18% of CVEs (scores of 2026-10-31)
CWE: CWE-354
Published: 2023-02-02
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

ui:af-2x_firmware

References

https://community.ui.com/tags/security/releases
https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/SkYce4f5o
https://community.ui.com/tags/security/releases
https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/SkYce4f5o

Check your stack JSON