CVE-2023-23773Network attack vector

Authenticated code execution via unsigned firmware updates

Published Aug 29, 2023 · Updated Oct 1, 2024

Firmware authentication failure in Motorola EBTS/MBTS Base Radio R05.x2.57 allows remote authenticated users to execute arbitrary code. The firmware update path installs packages without validating a cryptographic signature, allowing attacker-supplied images to run as device firmware. Access to the authenticated update interface is required; successful exploitation permits secret-key extraction and a persistent implant.

CVSS severity8.8
High
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Firmware authentication failure in Motorola EBTS/MBTS Base Radio R05.x2.57 allows remote authenticated users to execute arbitrary code. The firmware update path installs packages without validating a cryptographic signature, allowing attacker-supplied images to run as device firmware. Access to the authenticated update interface is required; successful exploitation permits secret-key extraction and a persistent implant.

The record

CVE
CVE-2023-23773
Published
Aug 29, 2023
Updated
Oct 1, 2024
Vendor
Motorola Solutions
Product
EBTS/MBTS Base Radio
Classifications
CWE-347, CAPEC-475, CAPEC-463, T1601
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 29, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 1, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=r05.x2.57
  2. Affected versionversion=R05.x2.57

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Motorola Solutions · EBTS/MBTS Base Radioversion=r05.x2.57; version=R05.x2.57

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-347Improper Verification of Cryptographic Signature
CAPEC-475Signature Spoofing by Improper Validation
CAPEC-463Padding Oracle Crypto Attack
T1601Modify System Image

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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