EUVD-2026-15408
GHSA-vgx9-cpq5-rx9p
Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
5DescriptionCVE.org
cryptodev-linux version 1.14 and prior contain a page reference handling flaw in the get_userbuf function of the /dev/crypto device driver that allows local users to trigger use-after-free conditions. Attackers with access to the /dev/crypto interface can repeatedly decrement reference counts of controlled pages to achieve local privilege escalation.
AnalysisAI
cryptodev-linux 1.14 and earlier suffer from a use-after-free vulnerability in the /dev/crypto device driver that enables local privilege escalation through reference count manipulation. Attackers with local access can exploit this memory corruption flaw to gain elevated privileges on affected systems. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Attacker must have low-privilege local user access to a Linux system running cryptodev-linux version 1.14 or prior with the /dev/crypto device driver loaded and accessible. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This vulnerability represents a critical real-world risk despite the absence of a numerical CVSS score in the provided data. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An unprivileged local attacker with standard user account access to a system running cryptodev-linux 1.14 can open the /dev/crypto device and craft a sequence of cryptographic operations that manipulate page reference counts in the get_userbuf function. By repeatedly decrementing reference counts on pages under their control, the attacker triggers a use-after-free condition, allowing them to overwrite kernel memory and ultimately execute arbitrary code with root privileges. … |
| Remediation | Immediately upgrade cryptodev-linux to a version newer than 1.14 that includes the patch from PR #104 (https://github.com/cryptodev-linux/cryptodev-linux/pull/104). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 7 days: Identify all affected systems and apply vendor patches promptly. …
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