Deserialization in Solarwinds Network Performance Monitor
CVE-2021-31474
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.
Vulnerability class: Insecure Deserialization
EPSS: 0.944 (99.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Solarwinds Network Performance Monitor — versions 2020.2.1
- Solarwinds Network_performance_monitor
Weakness classification (CWE)
Public proof-of-concept exploits
References
- zdi-disclosures@trendmicro.com (VDB Entry, Third Party Advisory, x_refsource_MISC)
- zdi-disclosures@trendmicro.com (x_refsource_MISC, Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-31474?
- CVE-2021-31474 is a critical-severity vulnerability in Solarwinds Network Performance Monitor, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2021-05-21.
- How severe is CVE-2021-31474?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-31474 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.