How severe is CVE-2023-50734?

CVE-2023-50734 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-50734 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-50734?

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.

Does CVE-2023-50734 have an EU (EUVD) identifier?

Yes. CVE-2023-50734 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-55490.

When was CVE-2023-50734 published?

CVE-2023-50734 was published on 2024-02-28 and last updated on 2026-06-17.

CVE-2023-50734

CVE-2023-50734 is a critical-severity vulnerability with a CVSS 3.x base score of 9.0. 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-121.

Key facts

Severity: Critical (CVSS 3.x base score 9.0)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-55490
Weakness: CWE-121
Published: 2024-02-28
Last modified: 2026-06-17

Description

A buffer overflow vulnerability has been identified in PostScript interpreter in various Lexmark devices. The vulnerability can be leveraged by an attacker to execute arbitrary code.

Frequently asked questions

What is CVE-2023-50734?: A buffer overflow vulnerability has been identified in PostScript interpreter in various Lexmark devices. The vulnerability can be leveraged by an attacker to execute arbitrary code.
How severe is CVE-2023-50734?: CVE-2023-50734 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-50734 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-50734?: 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.
Does CVE-2023-50734 have an EU (EUVD) identifier?: Yes. CVE-2023-50734 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-55490.
When was CVE-2023-50734 published?: CVE-2023-50734 was published on 2024-02-28 and last updated on 2026-06-17.

References

https://www.lexmark.com/en_us/solutions/security/lexmark-security-advisories.html

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