CVE-2021-35064Public exploitNetwork attack vector

Unauthenticated privilege escalation via dangerous sudoers

Published Jul 12, 2021 · Updated Aug 4, 2024

Improper privilege management in KramerAV VIAWare all tested versions allows remote attackers to gain root privileges via network requests. The sudoers configuration permits execution of dangerous commands including unzip, systemctl and dpkg, enabling command execution with elevated privileges. The web interface is reachable without authentication according to the published scoring, so compromise can provide complete confidentiality, integrity and availability impact.

CVSS severity9.8
Critical
EPSS probability70.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper privilege management in KramerAV VIAWare all tested versions allows remote attackers to gain root privileges via network requests. The sudoers configuration permits execution of dangerous commands including unzip, systemctl and dpkg, enabling command execution with elevated privileges. The web interface is reachable without authentication according to the published scoring, so compromise can provide complete confidentiality, integrity and availability impact.

The record

CVE
CVE-2021-35064
Published
Jul 12, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-269, T1548.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 12, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record 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 vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0NVDAV:N/AC:L/Au:N/C:C/I:C/A:C

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1548.003Sudo and Sudo Caching

Public exploit references

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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