CVE-2026-33957
An issue was discovered in CustOS Driver in Samsung Mobile Processor Exynos 1580. Requesting...
An issue was discovered in CustOS Driver in Samsung Mobile Processor Exynos 1580. Requesting oversized shared memory from the custos_iwc device enables out-of-bounds read and write, potentially leading to memory corruption or information leakage.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
An issue was discovered in CustOS Driver in Samsung Mobile Processor Exynos 1580. Requesting oversized shared memory from the custos_iwc device enables out-of-bounds read and write, potentially leading to memory corruption or information leakage.
- Record
CVE-2026-33957- CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:L - Weakness
- CWE-787
- Updated
- 2026-11-02
EUVDEUVD-2026-77160
An issue was discovered in CustOS Driver in Samsung Mobile Processor Exynos 1580. Requesting oversized shared memory from the custos_iwc device enables out-of-bounds read and write, potentially leading to memory corruption or information leakage.
- Record
EUVD-2026-77160- CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:L - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-4cjw-7m6g-3q48
An issue was discovered in CustOS Driver in Samsung Mobile Processor Exynos 1580. Requesting...
An issue was discovered in CustOS Driver in Samsung Mobile Processor Exynos 1580. Requesting oversized shared memory from the custos_iwc device enables out-of-bounds read and write, potentially leading to memory corruption or information leakage.
- Record
GHSA-4cjw-7m6g-3q48- CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:L - Weakness
- CWE-787
- Updated
- 2026-11-02
NVD
An issue was discovered in CustOS Driver in Samsung Mobile Processor Exynos 1580. Requesting oversized shared memory from the custos_iwc device enables out-of-bounds read and write, potentially leading to memory corruption or information leakage.
- Record
CVE-2026-33957- CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:L - Weakness
- CWE-787
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-33957 is a medium vulnerability (CVSS 4.2) in Samsung Exynos 1580 Firmware, published September 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.13%, the 2nd percentile. No source names a fixed version.