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Fencer Vulns
high 7.8

CVE-2021-34110 json

WinWaste.NET version 1.0.6183.16475 has incorrect permissions, allowing a local unprivileged user to replace the executable with a maliciou…

published 2021-07-08 5 y ago modified 2026-07-09 4 mo ago also EUVD-2021-20773

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 67%
public exploits
1
Exploit-DB

Summary

WinWaste.NET version 1.0.6183.16475 has incorrect permissions, allowing a local unprivileged user to replace the executable with a malicious file that will be executed with "LocalSystem" privileges.

Timeline

  1. First public exploit (EDB-50083)
  2. Published

Exploit prediction

1.16% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-50083 WinWaste.NET 1.0.6183.16475 - Privilege Escalation due Incorrect Access Control local, 2021-07-02
  • packetstormsecurity.com https://packetstormsecurity.com/files/163335/WinWaste.NET-1.0.6183.16475-Local-Privilege-Escalation.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-732 Incorrect Permission Assignment for Critical Resource

References

Sources

Fencer Vulns 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.