How severe is CVE-2023-1968?

CVE-2023-1968 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-1968 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-1968?

CVE-2023-1968 primarily affects Illumina Iscan Firmware. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-1968?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2023-1968 published?

CVE-2023-1968 was published on 2023-04-28 and last updated on 2026-06-17.

CVE-2023-1968

CVE-2023-1968 is a critical-severity vulnerability in Illumina Iscan Firmware with a CVSS 3.x base score of 10.0. 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-1327.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1327
Affected product: Illumina Iscan Firmware
Published: 2023-04-28
Last modified: 2026-06-17

Description

Instruments with Illumina Universal Copy Service v2.x are vulnerable due to binding to an unrestricted IP address. An unauthenticated malicious actor could use UCS to listen on all IP addresses, including those capable of accepting remote communications.

Frequently asked questions

What is CVE-2023-1968?: Instruments with Illumina Universal Copy Service v2.x are vulnerable due to binding to an unrestricted IP address. An unauthenticated malicious actor could use UCS to listen on all IP addresses, including those capable of accepting remote communications.
How severe is CVE-2023-1968?: CVE-2023-1968 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-1968 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-1968?: CVE-2023-1968 primarily affects Illumina Iscan Firmware. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-1968?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-1968 published?: CVE-2023-1968 was published on 2023-04-28 and last updated on 2026-06-17.

References

Affected products (15)

cpe:2.3:o:illumina:iscan_firmware:4.0.0:*:*:*:*:*:*:*
cpe:2.3:o:illumina:iscan_firmware:4.0.5:*:*:*:*:*:*:*
cpe:2.3:o:illumina:iseq_100_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:illumina:miniseq_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:illumina:miseq_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:illumina:miseqdx_firmware:*:*:*:*:-:*:*:*
cpe:2.3:o:illumina:miseqdx_firmware:4.0:*:*:*:ruo:*:*:*
cpe:2.3:o:illumina:nextseq_500_firmware:4.0:*:*:*:*:*:*:*
cpe:2.3:o:illumina:nextseq_550_firmware:4.0:*:*:*:*:*:*:*
cpe:2.3:o:illumina:nextseq_550dx_firmware:*:*:*:*:-:*:*:*
cpe:2.3:o:illumina:nextseq_550dx_firmware:4.0:*:*:*:ruo:*:*:*
cpe:2.3:o:illumina:nextseq_1000_firmware:1.4.1:*:*:*:*:*:*:*
cpe:2.3:o:illumina:nextseq_2000_firmware:1.4.1:*:*:*:*:*:*:*
cpe:2.3:o:illumina:novaseq_6000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:illumina:novaseq_6000_firmware:1.8:*:*:*:*:*:*:*

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