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CVE-2023-50734

25
FAUCET Score

CVE-2023-50734 is a critical buffer overflow vulnerability in the PostScript interpreter of various Lexmark devices, allowing unauthenticated attackers to execute arbitrary code remotely with high impact on confidentiality, integrity, and availability. With a CVSS score of 9.0, this vulnerability is highly severe due to its network-based attack vector and low attack complexity, requiring no user interaction. Despite its critical severity, there is currently no public exploit code available (Metasploit, Nuclei, ExploitDB), nor is it listed in CISA's KEV catalog, indicating no active exploitation. Community discussion and media coverage are also absent at this time.

Impacted Technologies

VendorProductVersion(s)CPE
LexmarkVarious
variousCNA affecteddefault unaffected

CVSS Data

CVSS version used by this source: 3.1

9.0CRITICAL

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.77%
Probability of exploitation in next 30 days
EPSS Percentile
51.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0077 is in the 47th percentile among its peer group of 201 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.4 Reddit, 1.2 Bluesky, 0.9 Mastodon, and 2.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.8 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

lexmark.com / en_us/solutions/security/lexmark-security-advisories.html