Vulnerability Report

CVE-2023-34320

Title: Arm Cortex-A77

Other

Proof Of Concept

No public PoC currently indexed for CVE-2023-34320.

CWE Category CWE-667

Published Date Dec 08, 2023

Modified Date Nov 04, 2025

Exploit Status Not Found

Score 5.5 CVSS v3.1

Exploit Probability (EPSS)

0.10%

Vulnerability Summary

CVE-2023-34320: Cortex-A77 cores (r0p0 and r1p0) are affected by erratum 1508412 where software, under certain circumstances, could deadlock a core due to the execution of either a load to device or non-cacheable memory, and either a store exclusive or register read of the Physical Address Register (PAR_EL1) in close proximity.

Impacted Vendors

arm 1

Reference Links

https://xenbits.xenproject.org/xsa/advisory-436.html http://xenbits.xen.org/xsa/advisory-436.html https://xenbits.xenproject.org/xsa/advisory-436.html

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

5.5

Attack Vector

LOCAL

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2023-34320 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

November 04, 2025 MODIFIED

Vulnerability data or affected products updated.

December 08, 2023 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


                                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.