CVE-2024-55503Public exploit

Local code execution via injected dynamic library

Published Jan 15, 2025 · Updated Jan 31, 2025

Untrusted search path handling in Termius before 9.9.0 allows local users to execute arbitrary code through a crafted dynamic library. The macOS dynamic loader honors DYLD_INSERT_LIBRARIES when Termius starts, causing an attacker-selected dylib to load inside the application process. Exploitation requires local control of the launch environment and a crafted library; injected code runs with the privileges of the user who starts Termius.

CVSS severity3.3
Low
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Untrusted search path handling in Termius before 9.9.0 allows local users to execute arbitrary code through a crafted dynamic library. The macOS dynamic loader honors DYLD_INSERT_LIBRARIES when Termius starts, causing an attacker-selected dylib to load inside the application process. Exploitation requires local control of the launch environment and a crafted library; injected code runs with the privileges of the user who starts Termius.

The record

CVE
CVE-2024-55503
Published
Jan 15, 2025
Updated
Jan 31, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-426, T1574.006
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jan 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Jan 31, 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 privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

3.3CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
3.3NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-426Untrusted Search Path
T1574.006Dynamic Linker Hijacking

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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