What is CVE-2021-25274?

CVE-2021-25274 is a critical-severity vulnerability in Solarwinds Orion_platform, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2021-02-03.

How severe is CVE-2021-25274?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2021-25274 known to be exploited?

4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Deserialization in Solarwinds Orion_platform

CVE-2021-25274

The Collector Service in SolarWinds Orion Platform before 2020.2.4 uses MSMQ (Microsoft Message Queue) and doesn't set permissions on its private queues. As a result, remote unauthenticated clients can send messages to TCP port 1801 that t…

Vulnerability class: Insecure Deserialization

EPSS: 0.364 (98.3th 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 Orion_platform
N/a — versions n/a

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-25274?: CVE-2021-25274 is a critical-severity vulnerability in Solarwinds Orion_platform, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2021-02-03.
How severe is CVE-2021-25274?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-25274 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.