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
Published Mar 27, 2017
7.8
HIGHCVSS 3.1
EPSS 4.45%
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.
Affected products
No data.
- ≤ 1.2.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.45% (0.04451) | 91.11th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.45% (0.04451) | 90.15th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.25% (0.01251) | 77.97th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.30% (0.01301) | 86.45th | v3 (v2023.03.01) |
| Jun 27, 2024 | 1.20% (0.01199) | 85.26th | v3 (v2023.03.01) |
| Aug 12, 2023 | 1.04% (0.01043) | 82.12th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.00% (0.00998) | 81.26th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.40% (0.04397) | 88.13th | v2 (v2022.01.01) |
| Feb 5, 2023 | 4.40% (0.04397) | 87.77th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.90% (0.03899) | 84.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.90% (0.03899) | 67.44th | v2 (v2022.01.01) |
References (6)
- http://www.openwall.com/lists/oss-security/2015/10/29/13 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/77307 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://blog.fuzzing-project.org/25-Heap-overflow-and-endless-loop-in-exfatfsck-exfat-utils.html x_refsource_MISCThird Party Advisory
- https://github.com/relan/exfat/commit/2e86ae5f81da11f11673d0546efb525af02b7786 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://github.com/relan/exfat/issues/5 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://security.gentoo.org/glsa/201612-31 vendor-advisoryx_refsource_GENTOOPatchThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2015/10/29/13 | mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory | |
| http://www.securityfocus.com/bid/77307 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://blog.fuzzing-project.org/25-Heap-overflow-and-endless-loop-in-exfatfsck-exfat-utils.html | x_refsource_MISCThird Party Advisory | |
| https://github.com/relan/exfat/commit/2e86ae5f81da11f11673d0546efb525af02b7786 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://github.com/relan/exfat/issues/5 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://security.gentoo.org/glsa/201612-31 | vendor-advisoryx_refsource_GENTOOPatchThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.