CVE-2021-33592

CRITICAL
Published Jul 19, 20214y ago · Modified Jun 17, 20261w ago
9.8 CVSS 3.1
Critical
Find Similar
Published Jul 19, 2021 4y ago
Last Modified Jun 17, 2026 1w ago

Description

NAVER Toolbar before 4.0.30.323 allows remote attackers to execute arbitrary code via a crafted upgrade.xml file. Special characters in filename parameter can be the cause of bypassing code signing check function.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-20 Improper Input Validation Validation

Affected Products 1

VendorProductVersionRange
navertoolbar* <4.0.30.323

References 1

  • cve.naver.com https://cve.naver.com/detail/cve-2021-33592
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.