How severe is CVE-2020-27869?

CVE-2020-27869 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-27869 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-27869?

CVE-2020-27869 primarily affects Solarwinds Network Performance Monitor. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-27869?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-27869 published?

CVE-2020-27869 was published on 2021-02-12 and last updated on 2026-06-17.

CVE-2020-27869

CVE-2020-27869 is a high-severity vulnerability in Solarwinds Network Performance Monitor with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-89.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Solarwinds Network Performance Monitor
Published: 2021-02-12
Last modified: 2026-06-17

Description

This vulnerability allows remote attackers to escalate privileges on affected installations of SolarWinds Network Performance Monitor 2020 HF1, NPM: 2020.2. Authentication is required to exploit this vulnerability. The specific flaw exists within the WriteToFile method. The issue results from the lack of proper validation of a user-supplied string before using it to construct SQL queries. An attacker can leverage this vulnerability to escalate privileges and reset the password for the Admin user. Was ZDI-CAN-11804.

Frequently asked questions

What is CVE-2020-27869?: This vulnerability allows remote attackers to escalate privileges on affected installations of SolarWinds Network Performance Monitor 2020 HF1, NPM: 2020.2. Authentication is required to exploit this vulnerability. The specific flaw exists within the WriteToFile method. The issue results from the lack of proper validation of a user-supplied string before using it to construct SQL queries. An attacker can leverage this vulnerability to escalate privileges and reset the password for the Admin user. Was ZDI-CAN-11804.
How severe is CVE-2020-27869?: CVE-2020-27869 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-27869 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-27869?: CVE-2020-27869 primarily affects Solarwinds Network Performance Monitor. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-27869?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-27869 published?: CVE-2020-27869 was published on 2021-02-12 and last updated on 2026-06-17.

References

https://www.zerodayinitiative.com/advisories/ZDI-21-064/

Affected products (2)

cpe:2.3:a:solarwinds:network_performance_monitor:2020:hotfix1:*:*:*:*:*:*
cpe:2.3:a:solarwinds:network_performance_monitor:2020.2:*:*:*:*:*:*:*

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