How severe is CVE-2023-0655?

CVE-2023-0655 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2023-0655 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-0655?

CVE-2023-0655 affects Sonicwall Email Security. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-0655?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-0655 published?

CVE-2023-0655 was published on 2023-02-14 and last updated on 2026-06-17.

CVE-2023-0655

CVE-2023-0655 is a medium-severity vulnerability in Sonicwall Email Security with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-209.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-209
Affected product: Sonicwall Email Security
Published: 2023-02-14
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2023-0655?: CVE-2023-0655 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2023-0655 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-0655?: CVE-2023-0655 affects Sonicwall Email Security. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-0655?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-0655 published?: CVE-2023-0655 was published on 2023-02-14 and last updated on 2026-06-17.

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0002

Affected products (1)

cpe:2.3:a:sonicwall:email_security:*:*:*:*:*:*:*:*

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