# CVE-2023-0655: Information disclosure in SonicWall Email Security

> Remote unauthenticated attackers can access error pages revealing sensitive user email addresses in SonicWall Email Security.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Feb 2023
- **Updated:** 20 Mar 2025
- **Also known as:** GHSA-54c3-8q97-jg7f

## What is CVE-2023-0655?

CVE-2023-0655 is a medium-severity vulnerability in SonicWall Email Security, published on 14 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official 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.

Weakness: CWE-209 (Generation of Error Message Containing Sensitive Information)

## Which versions are affected by CVE-2023-0655?

It affects 1 product.


Products: Sonicwall Email Security.

## How do I fix CVE-2023-0655?

No fix has been published for CVE-2023-0655 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-0655 being exploited?

There is no known exploitation of CVE-2023-0655 in the wild and no public exploit code.

## Other vulnerabilities in SonicWall Email Security

- [CVE-2021-20021](https://insights.sbomify.com/CVE-2021-20021/): SonicWall Email Security Improper Privilege Management (critical 9.8, exploited in the wild)
- [CVE-2021-20022](https://insights.sbomify.com/CVE-2021-20022/): SonicWall Email Security Unrestricted Upload of File (high 7.2, exploited in the wild)
- [CVE-2021-20023](https://insights.sbomify.com/CVE-2021-20023/): SonicWall Email Security Path Traversal (medium 4.9, exploited in the wild)
- [CVE-2026-3468](https://insights.sbomify.com/CVE-2026-3468/): Cross-site scripting in Email Security (medium 4.8)
- [CVE-2026-3470](https://insights.sbomify.com/CVE-2026-3470/): Other in Email Security (low 3.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-0655 and fix it if it is affected.

What it is: CVE-2023-0655 is a medium-severity vulnerability in SonicWall Email Security, published on 14 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-0655 in the wild and no public exploit code.

Affected product: SonicWall Email Security. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2023-0655/ (Markdown: https://insights.sbomify.com/CVE-2023-0655/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-0655
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-0655
- OSV: https://osv.dev/vulnerability/CVE-2023-0655

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-0655/
Summaries are generated and may contain mistakes; the official description above is the record.