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Critical severity · published May 21, 2021
CVE-2021-31474
This vulnerability allows remote attackers to execute arbitrary code on affected installations of SolarWinds Network Performance Monitor 2020.2.1
9.8
CVSS
93.9%
EPSS
No
On KEV
Description
This vulnerability allows remote attackers to execute arbitrary code on affected installations of SolarWinds Network Performance Monitor 2020.2.1. Authentication is not required to exploit this vulnerability. The specific flaw exists within the SolarWinds.Serialization library. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-12213.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)93.9% · higher than 100% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NP
Network Performance Monitor · Solarwinds
2020.2.1 before 2020.2.5 · source: NVD
Affected product
NP
Network Performance Monitor
Solarwinds
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-31474
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-31474
Release Notes
https://documentation.solarwinds.com/en/success_center/sam/content/release_notes/sam_2020-2-5_release_notes.htm
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-602/
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