CVE-2021-33592 json
NAVER Toolbar before 4.0.30.323 allows remote attackers to execute arbitrary code via a crafted upgrade.xml file.
published 2021-07-19 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-20276
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.1%
- EPSS 2.1% chance of exploitation in 30 days, percentile 81%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- naver toolbar 4.0.30.323
Exploit prediction
2.12% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- NAVER NAVER Toolbar
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
cve.naver.com
/detail/cve-2021-33592
vendor-advisory
Sources
- CVE List CVE-2021-33592
- NVD CVE-2021-33592
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