CVE-2021-35064
CriticalExploitedPublic exploitKramerAV VIAWare, all tested versions, allow privilege escalation through misconfiguration of sudo.
Published Jul 12, 2021 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2021-35064 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Viaware (Kramerav).
- It is exploited in the wild, listed in Industry KEV feed since May 26, 2022. Public exploit code is available.
- EPSS estimates a 71% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
71%
Higher than 99.3% of all scored CVEs
Exploited in the wild
Yes
1 catalog listing
Public exploit code
Available
Proof-of-concept or weaponized module
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Description
KramerAV VIAWare, all tested versions, allow privilege escalation through misconfiguration of sudo. Sudoers permits running of multiple dangerous commands, including unzip, systemctl and dpkg.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | May 26, 2022 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| ViawareKramerav | See advisory | n/a |
Timeline
Publicly disclosed
Jul 12, 2021
Added to Industry KEV feed
May 26, 2022
Last updated
Nov 21, 2024
Weakness Type
- CWE-269 Improper Privilege Management
References
FAQ
Common Questions.
KramerAV VIAWare, all tested versions, allow privilege escalation through misconfiguration of sudo.
Affected: Viaware (Kramerav). The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since May 26, 2022.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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