What is the CVSS score of CVE-2021-36665?

CVE-2021-36665 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.5%.

Is there a public PoC exploit available for CVE-2021-36665?

Yes, a public proof-of-concept exploit is available for CVE-2021-36665. Prioritise patching immediately. EPSS: 0.5%.

Insync Client CVE-2021-36665

HIGH

Deserialization of Untrusted Data (CWE-502)

2022-07-12 cve@mitre.org

Apple Deserialization Insync Client

7.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Jul 12, 2022 - 14:15 nvd

HIGH 7.8

DescriptionNVD

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

AnalysisAI

An issue was discovered in Druva 6.9.0 for macOS, allows attackers to gain escalated local privileges via the inSyncUpgradeDaemon. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Deserialization of Untrusted Data (CWE-502), which allows attackers to execute arbitrary code through malicious serialized objects. An issue was discovered in Druva 6.9.0 for macOS, allows attackers to gain escalated local privileges via the inSyncUpgradeDaemon. Affected products include: Druva Insync Client.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid deserializing untrusted data. Use safe serialization formats (JSON). Implement integrity checks and type allowlists.