← Vulnerability feed

Vulnerability record · CVE-2021-36665 · published 12 July 2022

CVE-2021-36665: Druva insync client deserialization of untrusted data vulnerability

Druva · Insync Client

An issue was discovered in Druva 6.9.0 for macOS, allows attackers to gain escalated local privileges via the inSyncUpgradeDaemon.

7.8 CVSS 3.1 High EPSS 0.51% · top 59.1% CWE-502 · Deserialization of untrusted data
7.8CVSS 3.1 base score, v2 7.2
0.51%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
9 Jul 2026Last modified by NVD

Description

An issue was discovered in Druva 6.9.0 for macOS, allows attackers to gain escalated local privileges via the inSyncUpgradeDaemon.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://docs.druva.com/Knowledge_Base/Security_Update/Security_Advisory_for_inSync_Client_7.0.1_and_before Vendor Advisory
https://imhotepisinvisible.com/druva-lpe/ ExploitPatchTechnical DescriptionThird Party Advisory
https://docs.druva.com/Knowledge_Base/Security_Update/Security_Advisory_for_inSync_Client_7.0.1_and_before Vendor Advisory
https://imhotepisinvisible.com/druva-lpe/ ExploitPatchTechnical DescriptionThird Party Advisory

Track CVE-2021-36665 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.8CVE-2021-36666Druva insync client untrusted search path vulnerabilityAn issue was discovered in Druva 6.9.0 for MacOS, allows attackers to gain escalated local privileges via the inSyncDecommission.EPSS 0.46%7.8CVE-2021-36667Druva insync client os command injection vulnerabilityCommand injection vulnerability in Druva inSync 6.9.0 for MacOS, allows attackers to execute arbitrary commands via crafted payload to the local HTTP…EPSS 2.7%7.8CVE-2021-36668Druva insync client injection vulnerabilityURL injection in Driva inSync 6.9.0 for MacOS, allows attackers to force a visit to an arbitrary url via the port parameter to the Electron App.EPSS 0.58%7.8CVE-2020-5752Druva insync client path traversal vulnerabilityRelative path traversal in Druva inSync Windows Client 6.6.3 allows a local, unauthenticated attacker to execute arbitrary operating system commands …EPSS 8.6%7.8CVE-2019-3999Druva insync client os command injection vulnerabilityImproper neutralization of special elements used in an OS command in Druva inSync Windows Client 6.5.0 allows a local, unauthenticated attacker to ex…EPSS 8.6%9.8CVE-2021-23758Ajax.NET Professional ajaxpro.2 untrusted deserialization RCEAll versions of the ajaxpro.2 package (Ajax.NET Professional) deserialize untrusted data and permit deserialization of arbitrary .NET classes. That l…KEVEPSS 83%analysed9.8CVE-2026-63077JetBrains TeamCity unauthenticated RCE via agent polling deserializationJetBrains TeamCity before 2026.1.3 and 2025.11.7 deserializes untrusted data received through the agent polling protocol, allowing unauthenticated re…KEVEPSS 9.8%analysed9.8CVE-2026-50522Microsoft SharePoint deserialization flaw allows remote code executionMicrosoft SharePoint Server deserializes untrusted data, letting an unauthorized attacker run code over the network. The flaw is remotely reachable w…KEVEPSS 3.0%analysed

Source: NIST National Vulnerability Database (record CVE-2021-36665), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.