CVE-2021-26623: Bandisoft ARK Library Out-of-bound Vulnerability

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-04-01 · updated 2026-06-17
Weakness: CWE-125

Description

A remote code execution vulnerability due to incomplete check for 'xheader_decode_path_record' function's parameter length value in the ark library. Remote attackers can induce exploit malicious code using this function.

Affected products

Bandisoft Bandizip: before 7.19 — fixed in 7.19

How to fix

Upgrade to a fixed version: Bandisoft Bandizip 7.19. Check the vendor advisory for mitigations.

References

https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66595
https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66595

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