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TI-2021-08780 Aliases CVE-2021-27240GHSA-hxhw-4jhr-hg8m

Deserialization of untrusted data in SolarWinds Patch Manager

Priority LOW 34CWE-502Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-502.

Summary

This vulnerability allows local attackers to escalate privileges on affected installations of SolarWinds Patch Manager 2020.2.1. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the DataGridService WCF service. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of Administrator. Was ZDI-CAN-12009.

Why it matters now

EPSS 0.00435 38th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
SolarWindsPatch Manager2020.2.1—No fix listedCNA
  • Patch Manager VendorSolarWinds Affected 2020.2.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:solarwinds:patch_manager:2020.2.1:*:*:*:*:*:*:*2020.2.1VulnerableSolarWinds
  • cpe:2.3:a:solarwinds:patch_manager:2020.2.1:*:*:*:*:*:*:* Versions 2020.2.1 Vulnerable ·SolarWinds

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-27240
  2. 2026-10-03 Alias added: GHSA-hxhw-4jhr-hg8m

References

Advisory 1

  • TI-2021-14110 Deserialization of Untrusted Data in Resource Controls Remote Code Execution CVSS 3.1HIGH 8.9
  • TI-2021-14111 Insecure Deserialization of untrusted data causing Remote code execution vulnerability. CVSS 3.1HIGH 8.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences