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CVE-2022-45063

CRITICAL CVSS 3.1: 9.8 EPSS 18.3%
Updated Apr 08, 2026
Invisible-Island
Parameter Value
CVSS 9.8 (CRITICAL)
Affected Versions before 375
Fixed In 375
Type CWE-77 (Command Injection)
Vendor Invisible-Island
Public PoC No

xterm before 375 allows code execution via font ops, e.g., because an OSC 50 response may have Ctrl-g and therefore lead to command execution within the vi line-editing mode of Zsh. NOTE: font ops are not allowed in the xterm default configurations of some Linux distributions.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 4

Configuration From (including) Up to (excluding)
Invisible-Island Xterm
cpe:2.3:a:invisible-island:xterm:*:*:*:*:*:*:*:*
375
Fedoraproject Fedora
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
Fedoraproject Fedora
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
Fedoraproject Fedora
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*