CVE-2021-35218Chart Endpoint Deserialization of Untrusted Data Remote Code Execution Vulnerability
- 8.9HighCVSS base score
- 76.4%Exploitation in 30 daysEPSS · top 0.5% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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
Timeline
ID reserved
By SolarWinds
- 2 months later
· 2 months later
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| SolarWindsCNA (assigner) | 3.1 | High8.9 | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L |
| NVDNVD · Modified | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 76.4% · top 0.5% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.9.
Affected products
- affected 2020.5 and previous versions – < 2020.2.6
What to do
Solution: This issue is fixed in the release of the Patch Manager module for Orion Platform version 2020.2.6.
References
References3
- https://documentation.solarwinds.com/en/success_center/patchman/content/release_notes/patchman_2020-2-6_release_notes.htm (opens in a new tab)x_refsource_MISCx_transferred
- https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35218 (opens in a new tab)x_refsource_MISCx_transferred
- https://www.zerodayinitiative.com/advisories/ZDI-21-1248/ (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2021-21861 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2021-35218)Record last updated .