Exynos 1480: Incorrect Conversion between Numeric Types
CVE-2026-68990 is a high-severity incorrect conversion between numeric types vulnerability in Exynos 1480 from Samsung Semiconductor, with a CVSS 3.1 base score of 7.8 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. The record lists version November 2026 as the first without the flaw, so updating Exynos 1480 to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.11% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Exynos 1480 to November 2026 or a later version.
- Update Exynos 2400 to November 2026 or a later version.
- Update Exynos 1580 to November 2026 or a later version.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Samsung Semiconductor | Exynos 1480 | before November 2026 | November 2026 |
| Samsung Semiconductor | Exynos 2400 | before November 2026 | November 2026 |
| Samsung Semiconductor | Exynos 1580 | before November 2026 | November 2026 |
| Samsung Semiconductor | Exynos 2500 | before November 2026 | November 2026 |
| Samsung Semiconductor | Exynos 2600 | before November 2026 | November 2026 |
| Samsung Semiconductor | Exynos 1680 | before November 2026 | November 2026 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by CISA (ADP).
Official description
In the Samsung Exynos H-Arx DRM plugin, improper input validation during buffer operations can cause memory corruption, potentially leading to denial of service or privilege escalation.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Incorrect Conversion between Numeric Types
When converting from one data type to another, such as long to integer, data can be omitted or translated in a way that produces unexpected values. If the resulting values are used in a sensitive context, then dangerous behaviors may occur.
How developers prevent this class of flaw
- Avoid making conversion between numeric types. Always check for the allowed ranges.
More Incorrect Conversion between Numeric Types vulnerabilities (CWE-681)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in Exynos 1480
- 9.8 Critical severity
Recent Incorrect Conversion between Numeric Types vulnerabilities
- 8.2 High severity
- 7.8 High severity
- 7.8 High severity
- 8.9 High severity
- 7.8 High severity
- 7.8 High severity
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