CVE-2025-5471

Local code execution via uncontrolled dylib search path

Published Dec 9, 2025 · Updated Dec 9, 2025

Uncontrolled search path in Yandex Telemost before 2.19.1 allows local users on macOS to hijack dynamic library loading. Yandex has not disclosed which executable or dynamic-library dependency is resolved through the uncontrolled search path. Exploitation requires local low-privileged access and placement of a malicious library in a searched location, causing its code to run in the application context.

CVSS severity7.8
High
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled search path in Yandex Telemost before 2.19.1 allows local users on macOS to hijack dynamic library loading. Yandex has not disclosed which executable or dynamic-library dependency is resolved through the uncontrolled search path. Exploitation requires local low-privileged access and placement of a malicious library in a searched location, causing its code to run in the application context.

The record

CVE
CVE-2025-5471
Published
Dec 9, 2025
Updated
Dec 9, 2025
Vendor
Yandex
Product
Yandex Telemost
Classifications
CWE-427, CAPEC-471, T1574.006
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 9, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2.19.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Yandex · Yandex Telemostversion=0 <2.19.1

Published CVSS scores

7.3YandexCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/AU:Y/R:A/U:Amber
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-427Uncontrolled Search Path Element
CAPEC-471Search Order Hijacking
T1574.006Hijack Execution Flow: Dynamic Linker Hijacking

Public exploit references

No public exploit references are available in this record.

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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