CVE-2015-8026
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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 4.45% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 91.0% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2017-03-27 15:00Z9 YR AGO
- Last updated
- 2024-08-06 08:06Z2 YR AGO
- Reserved
- 2015-10-29
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
- Data version
- 5.1
- Document digest
- 571894962588808e0100809e84d1f5fa9fd433321d9a3536ee857acd642ed4ae
05 Affected products
06 References
- github.comhttps://github.com/relan/exfat/commit/2e86ae5f81da11f11673d0546efb525af02b7786
- security.gentoo.orgGLSA-201612-31https://security.gentoo.org/glsa/201612-31
- blog.fuzzing-project.orghttps://blog.fuzzing-project.org/25-Heap-overflow-and-endless-loop-in-exfatfsck-exfat-utils.html
- github.comhttps://github.com/relan/exfat/issues/5
- www.securityfocus.com77307http://www.securityfocus.com/bid/77307
- www.openwall.com[oss-security] 20151029 Re: Heap overflow and endless loop in exfatfsck / exfat-utilshttp://www.openwall.com/lists/oss-security/2015/10/29/13
07 Fixed in
Debian 12
- fuse-exfat Fixed in 1.2.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- fuse-exfat Fixed in 1.2.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- fuse-exfat Fixed in 1.2.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.