CVE-2022-24130Public exploit

Terminal crash via out-of-bounds Sixel pixel write

Published Jan 31, 2022 · Updated Aug 3, 2024

Buffer overflow in xterm through Patch 370 allows local users to crash the terminal by displaying crafted text with Sixel enabled. set_sixel calculates a graphics-buffer offset from Sixel coordinates without rejecting out-of-bounds positions, then writes beyond the allocated buffer. The terminal must be built with Sixel support, configured to interpret Sixel graphics, and induced to process the crafted text; the demonstrated result is a SIGSEGV crash.

CVSS severity5.5
Medium
EPSS probability1.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in xterm through Patch 370 allows local users to crash the terminal by displaying crafted text with Sixel enabled. set_sixel calculates a graphics-buffer offset from Sixel coordinates without rejecting out-of-bounds positions, then writes beyond the allocated buffer. The terminal must be built with Sixel support, configured to interpret Sixel graphics, and induced to process the crafted text; the demonstrated result is a SIGSEGV crash.

The record

CVE
CVE-2022-24130
Published
Jan 31, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1499
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 31, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

2.6NIST NVDAV:N/AC:H/Au:N/C:N/I:N/A:P
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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