This vulnerability allows remote attackers to execute escalate privileges on affected installations of SolarWinds Orion Platform 2020.2.

published 2021-04-14 5y ago modified 2026-06-17 4mo ago also EUVD-2021-14023

cvss: 9.8; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 4.1%; EPSS 4.1% chance of exploitation in 30 days, percentile 90%
public exploits: 0; none known

This vulnerability allows remote attackers to execute escalate privileges on affected installations of SolarWinds Orion Platform 2020.2. Authentication is not required to exploit this vulnerability. The specific flaw exists within the SaveUserSetting endpoint. The issue results from improper restriction of this endpoint to unprivileged users. An attacker can leverage this vulnerability to escalate privileges their privileges from Guest to Administrator. Was ZDI-CAN-11903.

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Exploit prediction

4.12% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.0	9.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

SolarWinds Orion Platform

Classification

Weakness

CWE-284 Improper Access Control

References

zerodayinitiative.com /advisories/ZDI-21-192/
third-party-advisory, vdb-entry

Sources

CVE List CVE-2021-27258
NVD CVE-2021-27258

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