What is CVE-2021-26615?

CVE-2021-26615 is a high-severity vulnerability in Bandisoft Ark, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2021-11-26.

How severe is CVE-2021-26615?

High severity. CVSS v3 base score is 7.8 out of 10.

Integer overflow in Bandisoft Ark

CVE-2021-26615

ARK library allows attackers to execute remote code via the parameter(path value) of Ark_NormalizeAndDupPAthNameW function because of an integer overflow.

Vulnerability class: Integer Overflow

Published 2021-11-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (49.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.007 · change: +0.000

Affected products

Bandisoft Ark — versions 7.13.0.3
Bandisoft Ark Library — versions 7.13.0.3
Linux Kernel

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

www.boho.or.kr/krcert/secNoticeView.do (Third Party Advisory)

Frequently asked questions

What is CVE-2021-26615?: CVE-2021-26615 is a high-severity vulnerability in Bandisoft Ark, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2021-11-26.
How severe is CVE-2021-26615?: High severity. CVSS v3 base score is 7.8 out of 10.