How severe is CVE-2023-50739?

CVE-2023-50739 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-50739 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-50739?

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

Does CVE-2023-50739 have an EU (EUVD) identifier?

Yes. CVE-2023-50739 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-55495.

When was CVE-2023-50739 published?

CVE-2023-50739 was published on 2025-01-18 and last updated on 2026-06-17.

CVE-2023-50739

CVE-2023-50739 is a high-severity vulnerability with a CVSS 3.x base score of 8.8. 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-122.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-55495
Weakness: CWE-122
Published: 2025-01-18
Last modified: 2026-06-17

Description

A buffer overflow vulnerability has been identified in the Internet Printing Protocol (IPP) in various Lexmark devices. The vulnerability can be leveraged by an attacker to execute arbitrary code.

Frequently asked questions

What is CVE-2023-50739?: A buffer overflow vulnerability has been identified in the Internet Printing Protocol (IPP) in various Lexmark devices. The vulnerability can be leveraged by an attacker to execute arbitrary code.
How severe is CVE-2023-50739?: CVE-2023-50739 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-50739 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-50739?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-50739 have an EU (EUVD) identifier?: Yes. CVE-2023-50739 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-55495.
When was CVE-2023-50739 published?: CVE-2023-50739 was published on 2025-01-18 and last updated on 2026-06-17.

References

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

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