CVE-2022-45063

CRITICALCVSS 9.8/10EPSS 4.95%

Last modified

CVE-2022-45063 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 4.95% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
9.8/10

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

EPSS Probability
4.95%

91.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Invisible-IslandXterm< 375
FedoraprojectFedora35
FedoraprojectFedora36
FedoraprojectFedora37

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-45063?
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.
How severe is CVE-2022-45063?
CVE-2022-45063 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 4.95% probability of exploitation in the next 30 days.
How do I fix CVE-2022-45063?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-45063?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST