CVE-2015-8026

Name: CVE-2015-8026
Creator: NVD / NIST
Published: 2017-03-27T15:59:00.17+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 4.45%

Last modified Jun 17, 2026

CVE-2015-8026 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Heap-based buffer overflow in the verify_vbr_checksum function in exfatfsck in exfat-utils before 1.2.1 allows remote attackers to cause a denial of service (infinite loop) or possibly execute arbitrary code via a crafted filesystem.. EPSS estimates a 4.45% chance of exploitation in the next 30 days.

Description

Heap-based buffer overflow in the verify_vbr_checksum function in exfatfsck in exfat-utils before 1.2.1 allows remote attackers to cause a denial of service (infinite loop) or possibly execute arbitrary code via a crafted filesystem.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

4.45%

90.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Exfat Project	Exfat	<= 1.2.0

References

http://www.openwall.com/lists/oss-security/2015/10/29/13Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/77307Third Party Advisory, VDB Entry
https://blog.fuzzing-project.org/25-Heap-overflow-and-endless-loop-in-exfatfsck-exfat-utils.htmlThird Party Advisory
https://github.com/relan/exfat/commit/2e86ae5f81da11f11673d0546efb525af02b7786Issue Tracking, Patch, Third Party Advisory
https://github.com/relan/exfat/issues/5Issue Tracking, Patch, Third Party Advisory
https://security.gentoo.org/glsa/201612-31Patch, Third Party Advisory, VDB Entry
http://www.openwall.com/lists/oss-security/2015/10/29/13Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/77307Third Party Advisory, VDB Entry
https://blog.fuzzing-project.org/25-Heap-overflow-and-endless-loop-in-exfatfsck-exfat-utils.htmlThird Party Advisory
https://github.com/relan/exfat/commit/2e86ae5f81da11f11673d0546efb525af02b7786Issue Tracking, Patch, Third Party Advisory
https://github.com/relan/exfat/issues/5Issue Tracking, Patch, Third Party Advisory
https://security.gentoo.org/glsa/201612-31Patch, Third Party Advisory, VDB Entry

Timeline

Published: Mar 27, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-8026?

How severe is CVE-2015-8026?

CVE-2015-8026 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 4.45% probability of exploitation in the next 30 days.

How do I fix CVE-2015-8026?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-8026?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST