CVE-2021-35217
Insecure Deseralization of untrusted data remote code execution vulnerability was discovered in Patch Manager Orion Platform Integration module and reported to us by ZDI.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 72.8%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
Insecure Deseralization of untrusted data remote code execution vulnerability was discovered in Patch Manager Orion Platform Integration module and reported to us by ZDI. An Authenticated Attacker could exploit it by executing WSAsyncExecuteTasks deserialization of untrusted data.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 72.79% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- solarwinds/patch manager
- Source
- psirt@solarwinds.com
EPSS 72.8% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htmVendor Advisory
- https://documentation.solarwinds.com/en/success_center/orionplatform/content/release_notes/orion_platform_2020-2-6_release_notes.htmRelease Notes, Vendor Advisory
- https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35217Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-1247/Third Party Advisory, VDB Entry
- https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htmVendor Advisory
- https://documentation.solarwinds.com/en/success_center/orionplatform/content/release_notes/orion_platform_2020-2-6_release_notes.htmRelease Notes, Vendor Advisory
- https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35217Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-1247/Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.