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CVE-2023-40359

CRITICALCVSS 9.8/10EPSS 0.73%

Last modified

CVE-2023-40359 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. xterm before 380 supports ReGIS reporting for character-set names even if they have unexpected characters (i.e., neither alphanumeric nor underscore), aka a pointer/overflow issue. This can only occur for xterm installations that are configured at compile time to use a certain experimental feature.. EPSS estimates a 0.73% chance of exploitation in the next 30 days.

Description

xterm before 380 supports ReGIS reporting for character-set names even if they have unexpected characters (i.e., neither alphanumeric nor underscore), aka a pointer/overflow issue. This can only occur for xterm installations that are configured at compile time to use a certain experimental feature.

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
0.73%

49.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
Invisible-IslandXterm< 380

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-40359?
xterm before 380 supports ReGIS reporting for character-set names even if they have unexpected characters (i.e., neither alphanumeric nor underscore), aka a pointer/overflow issue. This can only occur for xterm installations that are configured at compile time to use a certain experimental feature.
How severe is CVE-2023-40359?
CVE-2023-40359 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.73% probability of exploitation in the next 30 days.
How do I fix CVE-2023-40359?
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-2023-40359?

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

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Source: NVD / NIST