CVE-2021-35216

Q: How do I fix CVE-2021-35216?

Upgrade patch manager to 2020.2.6 or later.

Q: Is CVE-2021-35216 being actively exploited?

Not that we know of. CVE-2021-35216 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 81.4% is the estimated probability that it will be exploited in the next 30 days. That is higher than 100% of all scored CVEs.

Q: How severe is CVE-2021-35216?

CVE-2021-35216 has a CVSS v3 base score of 8.9, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2021-35216 affect?

Published advisories record a fix for patch manager (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

HIGHEPSS 100th pctl

8.9

CVSS v3

NVD

Description

Insecure Deserialization of untrusted data remote code execution vulnerability was discovered in Patch Manager Orion Platform Integration module. An Authenticated Attacker with network access via HTTP can compromise this vulnerability can result in Remote Code Execution.

CWE-502Deserialization of Untrusted Data

How to fix

Remediation Available

patch managerNVD

Affected:< 2020.2.6Fixed in:2020.2.6CVE-2021-35216derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorAdjacent

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityLow

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

Exploit Intelligence

81.40%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

References

Patch1

solarwinds.com

Vendor Advisory1

documentation.solarwinds.com

Third-Party Advisory1

zerodayinitiative.com

Related Vulnerabilities

Other CWE-502 (Deserialization of Untrusted Data) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-0669	High	7.2	100%	KEV + Ransom	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-35464	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-29300	Critical	9.8	100%	KEV + Ransom	-
CVE-2025-53770	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2022-41082	High	8.0	100%	KEV + Ransom	Fix

Common questions

How do I fix CVE-2021-35216?

Upgrade patch manager to 2020.2.6 or later.

Is CVE-2021-35216 being actively exploited?

Not that we know of. CVE-2021-35216 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 81.4% is the estimated probability that it will be exploited in the next 30 days. That is higher than 100% of all scored CVEs.

How severe is CVE-2021-35216?

CVE-2021-35216 has a CVSS v3 base score of 8.9, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2021-35216 affect?

Published advisories record a fix for patch manager (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2021-35216

Markdown

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.