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…
- 7.5HighCVSS base score
- 15.7%Exploitation in 30 daysEPSS · top 3.1% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it.
Show the exploits1
Exploit-DB1 entry
- Total Commander 6.x - 'unacev2.dll' Buffer Overflow (PoC) (Exploit-DB entry) (opens in a new tab)
EDB-ID 1633dos, windowspublished 2 Apr 2006Verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
Published
- 19 years later
· 19 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 15.7% · top 3.1% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
n/a
- affected n/a
References
84
- automate-unacev2-bo(26982) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 1016512 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- http://secunia.com/secunia_research/2006-24/advisory (opens in a new tab)x_refsource_MISCx_transferred
- ADV-2006-2824 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 49 (opens in a new tab)third-party-advisoryx_refsource_SREASONx_transferred
- 19884 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- eazel-ztvunacev2-bo(26479) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- ADV-2006-1797 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 20060517 Secunia Research: Eazel unacev2.dll Buffer Overflow Vulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 1014863 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 1016011 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 1016115 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 19939 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://secunia.com/secunia_research/2006-46/advisory/ (opens in a new tab)x_refsource_MISCx_transferred
- 1016065 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- ADV-2006-1835 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 1016088 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- ADV-2006-3495 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 19967 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://secunia.com/secunia_research/2006-27/ (opens in a new tab)x_refsource_MISCx_transferred
- 1016177 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 1016114 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- powerarchiver-unacev2-ace-bo(26272) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- http://secunia.com/secunia_research/2006-50/advisory/ (opens in a new tab)x_refsource_MISCx_transferred
- 20060501 Secunia Research: WinHKI unacev2.dll Buffer Overflow Vulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 19931 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://secunia.com/secunia_research/2006-36/advisory (opens in a new tab)x_refsource_MISCx_transferred
- http://secunia.com/secunia_research/2006-28/advisory (opens in a new tab)x_refsource_MISCx_transferred
- filzip-unacev2-bo(26447) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 19975 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- ADV-2006-1775 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 16479 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- ultimatezip-unacev2-bo(26385) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- servant-salamander-unacev2-bo(26116) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 20060609 Secunia Research: AutoMate unacev2.dll Buffer OverflowVulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- ADV-2006-1611 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- ADV-2006-1681 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 20060511 Secunia Research: UltimateZip unacev2.dll Buffer OverflowVulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- ADV-2006-2184 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- ADV-2006-1577 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- http://secunia.com/secunia_research/2006-33/advisory/ (opens in a new tab)x_refsource_MISCx_transferred
- http://secunia.com/secunia_research/2006-29/advisory/ (opens in a new tab)x_refsource_MISCx_transferred
- 20060517 Secunia Research: IZArc unacev2.dll Buffer Overflow Vulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 19938 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 19581 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- antitrojan-unacev2-bo(26302) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- ADV-2006-1694 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 20270 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 19890 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 19977 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- winhki-unacev2-bo(26142) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- http://secunia.com/secunia_research/2006-38/advisory (opens in a new tab)x_refsource_MISCx_transferred
- 19596 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://secunia.com/secunia_research/2005-41/advisory/ (opens in a new tab)x_refsource_MISCx_transferred
- 1016066 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 20060717 Secunia Research: BitZipper unacev2.dll Buffer OverflowVulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 19458 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://secunia.com/secunia_research/2006-25/advisory (opens in a new tab)x_refsource_MISCx_transferred
- 1016012 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- risingantivirus-unacev2-bo(26736) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- http://secunia.com/secunia_research/2006-32/advisory/ (opens in a new tab)x_refsource_MISCx_transferred
- 19454 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 20060508 Secunia Research: Anti-Trojan unacev2.dll Buffer OverflowVulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- http://secunia.com/secunia_research/2006-30/advisory (opens in a new tab)x_refsource_MISCx_transferred
- whereisit-unacev2-bo(26315) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 20060428 Secunia Research: Servant Salamander unacev2.dll Buffer OverflowVulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 25129 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- bitzipper-unacev2-bo(27763) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 19834 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 20060515 Secunia Research: FilZip unacev2.dll Buffer Overflow Vulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- tziptv-unacev2-bo(28787) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 20060509 Secunia Research: Where Is It unacev2.dll Buffer OverflowVulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20009 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- izarc-unacev2-bo(26480) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- ADV-2006-2047 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- extractnow-unacev2-ace-bo(26168) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 14759 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- ADV-2006-1836 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 1016257 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 19612 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- ADV-2006-1565 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- ADV-2006-1725 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 1015852 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 20050908 Secunia Research: ALZip ACE Archive Handling Buffer Overflow (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2005-2857 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2005-2856)Record last updated .