CVE-2023-23119

Q: How do I fix CVE-2023-23119?

Upgrade af-2x firmware to 3.2.2 or later.

Q: Is CVE-2023-23119 being actively exploited?

Not that we know of. CVE-2023-23119 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.27% is the estimated probability that it will be exploited in the next 30 days. That is higher than 19% of all scored CVEs.

Q: How severe is CVE-2023-23119?

CVE-2023-23119 has a CVSS v3 base score of 5.9, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2023-23119 affect?

Published advisories record a fix for af-2x firmware (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

19thpercentile

Low risk: more likely to be exploited than 19% of all known CVEs.

References

Exploit1

hackmd.io

Vendor Advisory1

community.ui.com

Related Vulnerabilities

Other CWE-354 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-48795	Medium	5.9	93%	-	Fix
CVE-2019-1166	Medium	5.9	68%	-	-
CVE-2024-3596	Critical	9.0	15%	-	Fix
CVE-2020-26141	Medium	6.5	3.1%	-	Fix
CVE-2020-25862	High	7.5	2.4%	-	Fix
CVE-2020-8838	Medium	6.4	1.6%	-	-

Common questions

How do I fix CVE-2023-23119?

Upgrade af-2x firmware to 3.2.2 or later.

Is CVE-2023-23119 being actively exploited?

Not that we know of. CVE-2023-23119 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.27% is the estimated probability that it will be exploited in the next 30 days. That is higher than 19% of all scored CVEs.

How severe is CVE-2023-23119?

CVE-2023-23119 has a CVSS v3 base score of 5.9, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2023-23119 affect?

Published advisories record a fix for af-2x firmware (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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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.