← Vulnerability feed

Vulnerability record · CVE-2021-36667 · published 12 July 2022

CVE-2021-36667: Druva insync client os command injection vulnerability

Druva · Insync Client

Command injection vulnerability in Druva inSync 6.9.0 for MacOS, allows attackers to execute arbitrary commands via crafted payload to the local HTTP server due to un-sanitized call to the python os.system library.

7.8 CVSS 3.1 High EPSS 2.7% · top 14.8% CWE-78 · OS command injection
7.8CVSS 3.1 base score, v2 4.6
2.7%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

Command injection vulnerability in Druva inSync 6.9.0 for MacOS, allows attackers to execute arbitrary commands via crafted payload to the local HTTP server due to un-sanitized call to the python os.system library.

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 PatchVendor 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 PatchVendor Advisory
https://imhotepisinvisible.com/druva-lpe/ ExploitPatchTechnical DescriptionThird Party Advisory

Track CVE-2021-36667 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-2021-36665Druva insync client deserialization of untrusted data vulnerabilityAn issue was discovered in Druva 6.9.0 for macOS, allows attackers to gain escalated local privileges via the inSyncUpgradeDaemon.EPSS 0.51%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-2021-36668Druva 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%8.8CVE-2026-53266Linux kernel ebtables SNAT out-of-bounds write in ARP rewriteThe ebtables SNAT target rewrites the ARP sender hardware address via skb_store_bits() without first making that range writable. When the ARP SHA byt…KEVEPSS 0.65%analysed8.8CVE-2026-87491Google Chrome V8 out-of-bounds write enables sandbox code executionChrome before 153.0.8010.36 contains an out-of-bounds write in the V8 JavaScript engine. A crafted HTML page can trigger the memory corruption, and b…KEVEPSS 3.1%analysed9.8CVE-2025-25249Fortinet FortiOS and FortiSwitchManager heap buffer overflow via crafted packetsA heap-based buffer overflow (CWE-122/CWE-787) in Fortinet FortiOS 6.4 through 7.6.3 and FortiSwitchManager 7.0 through 7.2.6 lets an unauthenticated…KEVEPSS 3.9%analysed

Source: NIST National Vulnerability Database (record CVE-2021-36667), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.