CVE-2026-45531
In read_boot_region of fsck.c, there is a possible out of bounds read due to a heap buffer...
In read_boot_region of fsck.c, there is a possible out of bounds read due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
In read_boot_region of fsck.c, there is a possible out of bounds read due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
- Record
CVE-2026-45531- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
EUVDEUVD-2026-74004
In read_boot_region of fsck.c, there is a possible out of bounds read due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
- Record
EUVD-2026-74004- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-89v2-4jp2-7ch8
In read_boot_region of fsck.c, there is a possible out of bounds read due to a heap buffer...
In read_boot_region of fsck.c, there is a possible out of bounds read due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
- Record
GHSA-89v2-4jp2-7ch8- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
NVD
In read_boot_region of fsck.c, there is a possible out of bounds read due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
- Record
CVE-2026-45531- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
OSVASB-A-508645975No score
In read_boot_region of fsck.c, there is a possible out of bounds read due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
- Record
ASB-A-508645975- Updated
- 2026-11-10
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
platform/external/exfatprogsAndroid | 17-next:0 up to 17-next:2026-09-01, plus listed versions 17-next | 17-next:2026-09-01 |
platform/external/exfatprogsAndroid | 15:0 up to 15:2026-09-01, plus listed versions 15 | 15:2026-09-01 |
platform/external/exfatprogsAndroid | 16:0 up to 16:2026-09-01, plus listed versions 16 | 16:2026-09-01 |
platform/external/exfatprogsAndroid | 16-qpr2:0 up to 16-qpr2:2026-09-01, plus listed versions 16-qpr2 | 16-qpr2:2026-09-01 |
platform/external/exfatprogsAndroid | 17:0 up to 17:2026-09-01, plus listed versions 17 | 17:2026-09-01 |
platform/external/exfatprogsAndroid | 14:0 up to 14:2026-09-01, plus listed versions 14 | 14:2026-09-01 |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | OSV | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-45531 is a high vulnerability (CVSS 7.8) in Google Android, published September 1, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.10%, the 0th percentile. Fixed in platform/external/exfatprogs 17-next:2026-09-01.
References
source.android.com/docs/security/bulletin/2026/2026-09-01
nvd.nist.gov/vuln/detail/CVE-2026-45531
github.com/advisories/GHSA-89v2-4jp2-7ch8
android.googlesource.com/platform/external/exfatprogs/+/5ec5ede9ba508dde0c2cc95363742f2c2f669fff