What is CVE-2023-0655?

CVE-2023-0655 is a medium-severity vulnerability in SonicWall Email Security, classified under Generation of Error Message Containing Sensitive Information. CVSS score: 5.3/10. Published 2023-02-14.

How severe is CVE-2023-0655?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Information disclosure in SonicWall Email Security

CVE-2023-0655

SonicWall Email Security contains a vulnerability that could permit a remote unauthenticated attacker access to an error page that includes sensitive information about users email addresses.

Published 2023-02-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.007 (52.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

SonicWall Email Security
SonicWall Email Security — versions 10.0.19.7431 and earlier versions

Weakness classification (CWE)

CWE-209 — Generation of Error Message Containing Sensitive Information

References

psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0002 (Broken Link)

Frequently asked questions

What is CVE-2023-0655?: CVE-2023-0655 is a medium-severity vulnerability in SonicWall Email Security, classified under Generation of Error Message Containing Sensitive Information. CVSS score: 5.3/10. Published 2023-02-14.
How severe is CVE-2023-0655?: Medium severity. CVSS v3 base score is 5.3 out of 10.