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Fencer Intel
critical 9.8

CVE-2021-35064 in the critical feed json

KramerAV VIAWare, all tested versions, allow privilege escalation through misconfiguration of sudo.

published 5y ago modified 4mo ago also EUVD-2021-21709

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
70.8%
EPSS 70.8% chance of exploitation in 30 days, percentile 99.4%
public exploits
1
Exploit-DB, plus a Nuclei check

Summary

KramerAV VIAWare, all tested versions, allow privilege escalation through misconfiguration of sudo. Sudoers permits running of multiple dangerous commands, including unzip, systemctl and dpkg.

Is CVE-2021-35064 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Timeline

  1. Published
  2. First public exploit (EDB-50856)

Exploit prediction

70.75% chance of exploitation in the next 30 days, higher than 99.4% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-50856 Kramer VIAware - Remote Code Execution (RCE) (Root) remote, 2022-04-07
  • Nuclei template Kramer VIAware - Privilege Escalation and Remote Code Execution nuclei detection template
  • kramerav.com https://www.kramerav.com/us/product/viaware referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/166623/Kramer-VIAware-Remote-Code-Execution.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-269 Improper Privilege Management

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.