CVE-2022-43310

Privilege escalation via unsafe DLL search path

Published Nov 9, 2022 · Updated May 1, 2025

Uncontrolled DLL search in Foxit Reader before 11.2.118.51569 allows local users to escalate privileges through DLL planting. Foxit Reader's DLL-loading logic requests a library by a relative name rather than an absolute path, allowing a planted DLL to win the search order. Exploitation requires a malicious DLL in a searched directory and user interaction to launch the affected application.

CVSS severity7.8
High
EPSS probability1.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled DLL search in Foxit Reader before 11.2.118.51569 allows local users to escalate privileges through DLL planting. Foxit Reader's DLL-loading logic requests a library by a relative name rather than an absolute path, allowing a planted DLL to win the search order. Exploitation requires a malicious DLL in a searched directory and user interaction to launch the affected application.

The record

CVE
CVE-2022-43310
Published
Nov 9, 2022
Updated
May 1, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-427, CAPEC-471, CAPEC-38, T1574.001
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 9, 2022CVE publishedPublication date reported by the CVE source.
  2. May 1, 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

7.8NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-427Uncontrolled Search Path Element
CAPEC-471Search Order Hijacking
CAPEC-38Leveraging/Manipulating Configuration File Search Paths
T1574.001DLL Search Order 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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