How severe is CVE-2023-23119?

CVE-2023-23119 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2023-23119 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-23119?

CVE-2023-23119 affects Ui Af-2x Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-23119?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-23119 published?

CVE-2023-23119 was published on 2023-02-02 and last updated on 2026-06-17.

CVE-2023-23119

CVE-2023-23119 is a medium-severity vulnerability in Ui Af-2x Firmware with a CVSS 3.x base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-354.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-354
Affected product: Ui Af-2x Firmware
Published: 2023-02-02
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2023-23119?: 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.
How severe is CVE-2023-23119?: CVE-2023-23119 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2023-23119 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-23119?: CVE-2023-23119 affects Ui Af-2x Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-23119?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-23119 published?: CVE-2023-23119 was published on 2023-02-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:ui:af-2x_firmware:*:*:*:*:*:*:*:*

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