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Fencer Intel
high 7.0

CVE-2025-4539 json

Hainan ToDesk DLL File Parser profapi.dll uncontrolled search path

published last yr. modified 4mo ago also EUVD-2025-14255

cvss
7.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits
0
none known

Summary

A vulnerability was found in Hainan ToDesk 4.7.6.3. It has been declared as critical. This vulnerability affects unknown code in the library profapi.dll of the component DLL File Parser. The manipulation leads to uncontrolled search path. It is possible to launch the attack on the local host. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

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CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
last yr.

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • yuque.com https://www.yuque.com/ba1ma0-an29k/nnxoap/dgxzuhd90e19grpg?singleDoc referenced PoC, tagged "exploit" by a source, unverified
  • yuque.com https://www.yuque.com/ba1ma0-an29k/nnxoap/dgxzuhd90e19grpg?singleDoc#%20%E3%80%8Atodesk%20program%20has%20a%20privilege%20escalation%20vulnerability%E3%80%8B referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 7.3 CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 3.0 7.0 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 2.0 6.0 AV:L/AC:H/Au:S/C:C/I:C/A:C
CNA 4.0 7.3 CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • Hainan ToDesk

Classification

Weakness
  • CWE-427 Uncontrolled Search Path Element
  • CWE-426 Untrusted Search Path

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.