CVE-2022-43151Public exploit

Process memory consumption via unreleased terminal-color allocation

Published Oct 31, 2022 · Updated May 6, 2025

Memory leak in timg 1.4.4 allows local users to consume process memory by opening an image in an interactive terminal. QueryBackgroundColor returns a heap-allocated duplicate of the parsed #rrggbb terminal response, but the caller never releases that allocation. The leak requires local execution, an image input, and a terminal response; the published reproduction demonstrates an eight-byte process-lifetime leak at this locus.

CVSS severity5.5
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leak in timg 1.4.4 allows local users to consume process memory by opening an image in an interactive terminal. QueryBackgroundColor returns a heap-allocated duplicate of the parsed #rrggbb terminal response, but the caller never releases that allocation. The leak requires local execution, an image input, and a terminal response; the published reproduction demonstrates an eight-byte process-lifetime leak at this locus.

The record

CVE
CVE-2022-43151
Published
Oct 31, 2022
Updated
May 6, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-401, T1499
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 31, 2022CVE publishedPublication date reported by the CVE source.
  2. May 6, 2025Record 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

5.5CISA ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
5.5NVDCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-401Missing Release of Memory after Effective Lifetime
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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