CVE-2026-56975 Google CVE debrief

Who should care

Defenders responsible for Cellular Modem systems, particularly those with proximal or adjacent network access, should assess exposure and prioritize verification of affected systems.

Why it matters

Defenders should assess exposure and prioritize verification of affected Cellular Modem systems due to a potential denial of service vulnerability. This vulnerability could lead to remote (proximal/adjacent) denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. The CVE record and NVD detail page provide information on this vulnerability.

• Potential denial of service attacks via proximal or adjacent network access
• Need to verify network access controls and proximal or adjacent network security
• Importance of reviewing and applying vendor advisories and patches

Technical summary

A potential denial of service vulnerability exists in Cellular Modem due to improper input validation. This could lead to remote (proximal/adjacent) denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. The vulnerability affects Cellular Modem systems, particularly those with proximal or adjacent network access. Defenders should assess exposure and prioritize verification of affected systems. The CVE record and NVD detail page provide information on this vulnerability.

Defensive priority

Defenders should assess exposure and prioritize verification of affected systems, particularly those with proximal or adjacent network access.

Recommended defensive actions

• Assess exposure of Cellular Modem systems to potential denial of service attacks
• Verify network access controls and proximal or adjacent network security
• Review and apply vendor advisories and patches
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• 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

Evidence notes

The CVE record and NVD detail page provide information on a potential denial of service vulnerability in Cellular Modem due to improper input validation. The vulnerability could lead to remote (proximal/adjacent) denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. Defenders should verify network access controls and proximal or adjacent network security. The CVE record was published on 2026-09-15T19:17:29.440Z and has not been modified since then. The NVD entry is currently

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.