CVE-2021-35216
CVE-2021-35216 is a high-severity vulnerability in Solarwinds Patch Manager with a CVSS 3.x base score of 8.9. Its EPSS exploit-prediction score of 81% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-502.
Key facts
- Severity: High (CVSS 3.x base score 8.9)
- CVSS v2: 9.0
- EPSS exploit prediction: 81% (100th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-502
- Affected product: Solarwinds Patch Manager
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2021-35216?
- 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.
- How severe is CVE-2021-35216?
- CVE-2021-35216 has a CVSS 3.x base score of 8.9, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.
- Is CVE-2021-35216 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 81% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-35216?
- CVE-2021-35216 affects Solarwinds Patch Manager. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-35216?
- 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-2021-35216 published?
- CVE-2021-35216 was published on 2021-09-01 and last updated on 2026-06-17.
References
- https://documentation.solarwinds.com/en/success_center/patchman/content/release_notes/patchman_2020-2-6_release_notes.htm
- https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35216
- https://www.zerodayinitiative.com/advisories/ZDI-21-1246/
Affected products (1)
- cpe:2.3:a:solarwinds:patch_manager:*:*:*:*:*:*:*:*
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