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CVE-2021-35218

67
FAUCET Score

CVE-2021-35218 describes a critical deserialization of untrusted data vulnerability in the Web Console Chart Endpoint of SolarWinds Orion Platform, specifically affecting Orion Patch Manager. This flaw allows an unauthorized attacker with network access to the web console to achieve remote code execution, leading to a complete compromise of the server. With a CVSS score of 8.8 (High), it presents a significant risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While no public exploit code (Metasploit, Nuclei, ExploitDB) or active exploitation (KEV) has been identified, and community discussion and media coverage are minimal, the high EPSS score suggests a non-negligible probability of future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
< 2020.2.6CPE matchmatch criteria
cpe:2.3:a:solarwinds:orion_platform:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.9HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
LOW
Exploitability Score
2.3
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
76.41%
Probability of exploitation in next 30 days
EPSS Percentile
99.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.7641 is in the 99th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

documentation.solarwinds.com / en/success_center/patchman/content/release_notes/patchman_2020-2-6_release_notes.htm
Not ApplicableVendor Advisory
solarwinds.com / trust-center/security-advisories/cve-2021-35218
Vendor Advisory
zerodayinitiative.com / advisories/ZDI-21-1248
Third Party AdvisoryVDB Entry