TI-2026-00749 Aliases CVE-2026-0995 GHSA-56p3-hm9h-q26v

Race condition in Arm C1 Pro

LOW 16CWE-362Published 2026-03-02 · Updated 2026-03-02

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: High
Impact type: —
Confidentiality · integrity · availability: None · Low · Low
Fix status: Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

An issue has been identified in Arm C1-Pro before r1p2-50eac0, where, under certain conditions, a TLBI+DSB might fail to ensure the completion of memory accesses related to SME.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00098 0th percentileScored 2026-11-07

Fix Fixed C1 Pro (Arm): r1p2-50eac0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Arm	C1 Pro	before r1p2-50eac0	r1p2-50eac0	Patch available	CNA

C1 Pro VendorArm Affected before r1p2-50eac0 Fixed in r1p2-50eac0 Patch available CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:arm:c1-pro_firmware::::::::	before r1p2-50eac0	Vulnerable	Arm
cpe:2.3:h:arm:c1-pro:-:::::::*	not specified by NVD	Running on	Arm

cpe:2.3:o:arm:c1-pro_firmware:*:*:*:*:*:*:*:* Versions before r1p2-50eac0 Vulnerable ·Arm
cpe:2.3:h:arm:c1-pro:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arm

Remediation

Fix · CNA C1 Pro (Arm) Fixed in r1p2-50eac0

Timeline

2026-10-02 Threatist record created from CVE-2026-0995
2026-10-03 Alias added: GHSA-56p3-hm9h-q26v

References

Advisory 1

https://developer.arm.com/documentation/111823

TI-2024-07304 Observable discrepancy in Arm Neoverse V2 CVSS 3.1MEDIUM 5.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences