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Vulnerability record · CVE-2017-11323 · published 19 August 2017

CVE-2017-11323: Estsoft alzip memory buffer overflow vulnerability

Estsoft · Alzip

Stack-based buffer overflow in ESTsoft ALZip 8.51 and earlier allows remote attackers to execute arbitrary code via a crafted MS-DOS device file, as demonstrated by use of "AUX" as the initial substring of a filename.

7.8 CVSS 3.1 High EPSS 3.0% · top 13.4% CWE-119 · Memory buffer overflow
7.8CVSS 3.1 base score, v2 6.8
3.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Stack-based buffer overflow in ESTsoft ALZip 8.51 and earlier allows remote attackers to execute arbitrary code via a crafted MS-DOS device file, as demonstrated by use of "AUX" as the initial substring of a filename.

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://exploit.kitploit.com/2017/08/alzip-851-buffer-overflow.html ExploitThird Party Advisory
http://www.altools.com/ALTools/ALZip/Version-History.aspx Release NotesVendor Advisory
http://exploit.kitploit.com/2017/08/alzip-851-buffer-overflow.html ExploitThird Party Advisory
http://www.altools.com/ALTools/ALZip/Version-History.aspx Release NotesVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2017-11323), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.