CVE-2026-100892 aligungr CVE debrief

Who should care

Defenders responsible for remote access systems and UERANSIM implementations should assess exposure and verify the integrity of the ULInformationTransfer function. The vulnerability affects remote access systems and UERANSIM implementations. Defenders should prioritize verifying exposure in remote access systems and assessing the integrity of the ULInformationTransfer function in UERANSIM implementations.

Why it matters

A memory corruption vulnerability in UERANSIM's ULInformationTransfer function can be exploited remotely, requiring verification of exposure and integrity in remote access systems and UERANSIM implementations.

• Verify exposure in remote access systems
• Assess the integrity of the ULInformationTransfer function
• Monitor for potential memory corruption

Technical summary

The vulnerability affects the ULInformationTransfer function in UERANSIM's nr-gnb component, leading to memory corruption when manipulating the dedicatedNASMessage argument. The vulnerability affects remote access systems and UERANSIM implementations. Defenders should assess exposure and verify the integrity of the ULInformationTransfer function. The attack can be initiated remotely, requiring verification of exposure and integrity in remote access systems and UERANSIM implementations. The CVE record and NVD entry provide limited information about the vulnerability.

Defensive priority

Defenders should prioritize verifying exposure in remote access systems and assessing the integrity of the ULInformationTransfer function in UERANSIM implementations.

Recommended defensive actions

• Verify exposure in remote access systems
• Assess the integrity of the ULInformationTransfer function in UERANSIM implementations
• Monitor for potential memory corruption
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. Further verification is required to determine the affected versions, exploitation status, and remediation. The vulnerability affects remote access systems and UERANSIM implementations. Defenders should assess exposure and verify the integrity of the ULInformationTransfer function.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.