EUVD-2026-75900
GHSA-34f9-5v7x-jpw3
Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
AKA-Synchronization-Failure messages arrive over the network unauthenticated; NULL deref causes crash with no confidentiality or integrity impact.
Primary rating from Vendor (vendor:ubuntu).
CVSS VectorVendor: vendor:ubuntu
Lifecycle Timeline
3DescriptionCVE.org
NULL-Pointer Dereference When Handling AKA-Synchronization-Failure
AnalysisAI
NULL-pointer dereference in code handling Authentication and Key Agreement (AKA) Synchronization-Failure messages causes a process crash when a malformed or unexpected AKA-Synchronization-Failure response is processed. The vulnerability affects software that implements 3GPP AKA authentication - a protocol used in mobile network authentication (3G/4G/5G) and EAP-AKA for Wi-Fi/IMS - as packaged by Ubuntu. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The vulnerable code path is reached when an AKA-Synchronization-Failure (AUTS) message is processed by the affected software component. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | With no CVSS vector, no EPSS score, no KEV listing, and no POC, risk must be inferred entirely from the vulnerability class and protocol context. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No specific patch version, advisory URL, or fix reference was provided in the input data. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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