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cve[email protected]CVE-2021-26734
HistoryOct 23, 2023 - 2:15 p.m.

CVE-2021-26734

2023-10-2314:15:08
CWE-269
web.nvd.nist.gov
14
cve-2021-26734
zscaler
windows
directory junctions
uninstallation
security vulnerability

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

5.3 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.5%

Zscaler Client Connector Installer on Windows before version 3.4.0.124 improperly handled directory junctions during uninstallation. A local adversary may be able to delete folders in an elevated context.

Affected configurations

NVD
Node
zscalerclient_connectorRange<3.4.0.124windows

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Client Connector",
    "vendor": "Zscaler",
    "versions": [
      {
        "lessThan": "3.4.0.124",
        "status": "affected",
        "version": "0",
        "versionType": "custom"
      }
    ]
  }
]

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

5.3 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.5%

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