CVE-2021-35218 in the critical feed json
Chart Endpoint Deserialization of Untrusted Data Remote Code Execution Vulnerability
published 2021-09-01 5 y ago modified 2026-06-17 4 mo 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
Summary
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
- SolarWinds Patch Manager 2020.2.6
Exploit prediction
76.41% chance of exploitation in the next 30 days, higher than 99.5% of all scored CVEs (FIRST EPSS, 2026-11-08).
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
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.