Is CVE-2023-23119 in the CISA KEV catalog?

No. CVE-2023-23119 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-23119?

CVE-2023-23119 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2023-23119?

CVE-2023-23119 has an EPSS score of 0.27% (18th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-23119?

Upgrade af-2x firmware to 3.2.2 or later.

CVE & CISA-KEV Catalog

CVE-2023-23119

MEDIUM

5.9

CVSS v3

NVD

Description

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.

CWE-354

How to fix

Remediation Available

af-2x firmwareNVD

Affected:< 3.2.2Fixed in:3.2.2CVE-2023-23119derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

0.27%probability of exploitation in 30 days

18thpercentile

Low risk: more likely to be exploited than 18% of all known CVEs.

References

Exploit1

hackmd.io

Vendor Advisory1

community.ui.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-03-26.