CVE-2023-0344Network attack vector

Unauthenticated device-state modification via hidden SSH option

Published Mar 31, 2023 · Updated Jan 16, 2025

Hidden functionality in the Dropbear SSH server in Akuvox E11 111.30.2.19 and earlier allows remote attackers to modify device state. Akuvox customized Dropbear to enable an insecure option that upstream Dropbear does not enable by default, but the option itself is undisclosed. Exploitation requires network access to the SSH service; published material does not identify the exact state changes available.

CVSS severity9.1
Critical
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hidden functionality in the Dropbear SSH server in Akuvox E11 111.30.2.19 and earlier allows remote attackers to modify device state. Akuvox customized Dropbear to enable an insecure option that upstream Dropbear does not enable by default, but the option itself is undisclosed. Exploitation requires network access to the SSH service; published material does not identify the exact state changes available.

The record

CVE
CVE-2023-0344
Published
Mar 31, 2023
Updated
Jan 16, 2025
Vendor
Akuvox
Product
E11
Classifications
Unavailable
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 31, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 16, 2025Record 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=All

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Akuvox · E11version=All

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
9.1ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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