How severe is CVE-2021-26615?

CVE-2021-26615 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-26615 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-26615?

CVE-2021-26615 affects Bandisoft Ark Library. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-26615?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-26615 published?

CVE-2021-26615 was published on 2021-11-26 and last updated on 2026-06-17.

CVE-2021-26615

CVE-2021-26615 is a high-severity vulnerability in Bandisoft Ark Library with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-190.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-190
Affected product: Bandisoft Ark Library
Published: 2021-11-26
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is 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.
How severe is CVE-2021-26615?: CVE-2021-26615 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-26615 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-26615?: CVE-2021-26615 affects Bandisoft Ark Library. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-26615?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-26615 published?: CVE-2021-26615 was published on 2021-11-26 and last updated on 2026-06-17.

References

https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36361

Affected products (1)

cpe:2.3:a:bandisoft:ark_library:7.13.0.3:*:*:*:*:*:*:*

More vulnerabilities in Bandisoft Ark Library

CVE-2021-26603 — High (CVSS 8.6): A heap overflow issue was found in ARK library of bandisoft Co., Ltd when the Ark_DigPathA function parsed a file path.…
CVE-2021-26635 — High (CVSS 7.8): In the code that verifies the file size in the ark library, it is possible to manipulate the offset read from the…

All CVEs affecting Bandisoft Ark Library →

Other CWE-190 (Integer Overflow or Wraparound) vulnerabilities

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CVE-2025-64721 — Critical (CVSS 10.0): Sandboxie is a sandbox-based isolation software for 32-bit and 64-bit Windows NT-based operating systems. In versions…
CVE-2015-5108 — Critical (CVSS 10.0): Integer overflow in Adobe Reader and Acrobat 10.x before 10.1.15 and 11.x before 11.0.12, Acrobat and Acrobat Reader DC…
CVE-2015-5097 — Critical (CVSS 10.0): Integer overflow in Adobe Reader and Acrobat 10.x before 10.1.15 and 11.x before 11.0.12, Acrobat and Acrobat Reader DC…
CVE-2013-2555 — Critical (CVSS 10.0): Integer overflow in Adobe Flash Player before 10.3.183.75 and 11.x before 11.7.700.169 on Windows and Mac OS X, before…

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