CVE-2023-0655Network attack vector

Email-address disclosure via verbose error page

Published Feb 14, 2023 · Updated Mar 20, 2025

Information disclosure in SonicWall Email Security 10.0.19.7431 and earlier allows remote attackers to read users’ email addresses. The error-handling path for crafted unauthenticated requests returns an error page populated with users’ email addresses; SonicWall has not disclosed the affected endpoint or implementation operation. Network access to the web interface is sufficient, and the reported consequence is limited to disclosure of email addresses.

CVSS severity5.3
Medium
EPSS probability0.72%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in SonicWall Email Security 10.0.19.7431 and earlier allows remote attackers to read users’ email addresses. The error-handling path for crafted unauthenticated requests returns an error page populated with users’ email addresses; SonicWall has not disclosed the affected endpoint or implementation operation. Network access to the web interface is sufficient, and the reported consequence is limited to disclosure of email addresses.

The record

CVE
CVE-2023-0655
Published
Feb 14, 2023
Updated
Mar 20, 2025
Vendor
SonicWall
Product
SonicWall Email Security
Classifications
CWE-209, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 14, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 20, 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=10.0.19.7431 and earlier versions

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SonicWall · SonicWall Email Securityversion=10.0.19.7431 and earlier versions

Published CVSS scores

5.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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

CWE-209Generation of Error Message Containing Sensitive Information
T1190Exploit Public-Facing Application

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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