CVE-2022-27813

Cross-core code execution via unprotected shared memory

Published Oct 19, 2023 · Updated Aug 3, 2024

Memory isolation failure in Motorola MTM5000 series firmware allows local users controlling one processor core to execute code on the other. MPU1 and MPU2 are left unconfigured for shared RAM and DDR2 pages, allowing either core to overwrite instructions that the other core executes. Exploitation requires prior control of the ARM or DSP core and crosses the hardware trust boundary, granting code execution on the peer core.

CVSS severity8.2
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory isolation failure in Motorola MTM5000 series firmware allows local users controlling one processor core to execute code on the other. MPU1 and MPU2 are left unconfigured for shared RAM and DDR2 pages, allowing either core to overwrite instructions that the other core executes. Exploitation requires prior control of the ARM or DSP core and crosses the hardware trust boundary, granting code execution on the peer core.

The record

CVE
CVE-2022-27813
Published
Oct 19, 2023
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-1260, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Oct 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.1National Cyber Security Centre NetherlandsCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:H
8.2NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1260Improper Handling of Overlap Between Protected Memory Ranges
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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