Chart Endpoint Deserialization of Untrusted Data Remote Code Execution Vulnerability

published 2021-09-01 5y ago modified 2026-06-17 4mo ago also EUVD-2021-21861

cvss: 8.9; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 76.4%; EPSS 76.4% chance of exploitation in 30 days, percentile 99.5%
public exploits: 0; none known

Deserialization of Untrusted Data in the Web Console Chart Endpoint can lead to remote code execution. An unauthorized attacker who has network access to the Orion Patch Manager Web Console could potentially exploit this and compromise the server

Patch / fix

fixed in 1

SolarWinds Patch Manager 2020.2.6

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Exploit prediction

76.41% chance of exploitation in the next 30 days, higher than 99.5% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.9	CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

SolarWinds Patch Manager

Classification

Weakness

CWE-502 Deserialization of Untrusted Data

References

documentation.solarwinds.com /en/success_center/patchman/content/release_notes/patchman_2020-2-6_release_notes.htm
not-applicable, vendor-advisory
solarwinds.com /trust-center/security-advisories/cve-2021-35218
vendor-advisory
zerodayinitiative.com /advisories/ZDI-21-1248/
third-party-advisory, vdb-entry

Sources

CVE List CVE-2021-35218
NVD CVE-2021-35218

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