CVE-2026-47554
Description
A flaw was found in nvidia-driver. Under conditions of memory pressure, the kernel mode layer improperly verifies cryptographic signatures, allowing verification checks to be bypassed. A local attacker with low privileges could exploit this vulnerability to tamper with system data or cause a Denial of Service (DoS).
Statement
Red Hat has classified this vulnerability as an Important severity flaw because an unprivileged local user could induce memory exhaustion to bypass driver signature validation, resulting in system data manipulation or an operating system denial of service. The flaw is contained at the Important rating rather than Critical because exploitation is restricted to local access with preexisting user privileges and does not allow confidential information disclosure. Red Hat Enterprise Linux releases are not affected, as the vulnerable driver logic is not present in supported package builds.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7.1 | N/A | 7.1 |
| Attack Vector | Local | N/A | Local |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | Low | N/A | Low |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | None | N/A | None |
| Integrity Impact | High | N/A | High |
| Availability Impact | High | N/A | High |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
cve.org: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
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