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Vulnerability record · CVE-2018-1000031 · published 9 February 2018

CVE-2018-1000031: Info-zip unzip out-of-bounds write vulnerability

IInfo Zip · Unzip

A heap-based buffer overflow exists in Info-Zip UnZip version 6.10c22 that allows an attacker to perform a denial of service or to possibly achieve code execution.

7.8 CVSS 3.0 High EPSS 1.3% · top 30.3% CWE-787 · Out-of-bounds write
7.8CVSS 3.0 base score, v2 6.8
1.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A heap-based buffer overflow exists in Info-Zip UnZip version 6.10c22 that allows an attacker to perform a denial of service or to possibly achieve code execution.

CVSS:3.0/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
https://sec-consult.com/en/blog/advisories/multiple-vulnerabilities-in-infozip-unzip/index.html Third Party Advisory
https://sec-consult.com/en/blog/advisories/multiple-vulnerabilities-in-infozip-unzip/index.html Third Party Advisory

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Related vulnerabilities

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

9.1CVE-2018-1000033Info-zip unzip out-of-bounds read vulnerabilityAn out-of-bounds read exists in Info-Zip UnZip version 6.10c22 that allows an attacker to perform a denial of service and read sensitive memory.EPSS 1.7%9.1CVE-2018-1000034Info-zip unzip out-of-bounds read vulnerabilityAn out-of-bounds read exists in Info-Zip UnZip version 6.10c22 that allows an attacker to perform a denial of service and read sensitive memory.EPSS 1.4%7.8CVE-2018-1000032Info-zip unzip out-of-bounds write vulnerabilityA heap-based buffer overflow exists in Info-Zip UnZip version 6.10c22 that allows an attacker to perform a denial of service or to possibly achieve c…EPSS 1.3%7.5CVE-2015-1315Canonical ubuntu linux memory buffer overflow vulnerabilityBuffer overflow in the charset_to_intern function in unix/unix.c in Info-Zip UnZip 6.10b allows remote attackers to execute arbitrary code via a craf…EPSS 4.9%6.2CVE-2005-0602Info-zip unzip vulnerabilityUnzip 5.51 and earlier does not properly warn the user when extracting setuid or setgid files, which may allow local users to gain privileges.EPSS 0.40%3.7CVE-2005-4667Info-zip unzip memory buffer overflow vulnerabilityBuffer overflow in UnZip 5.50 and earlier allows user-assisted attackers to execute arbitrary code via a long filename command line argument. NOTE: s…EPSS 1.5%2.6CVE-2003-0282Info-zip unzip vulnerabilityDirectory traversal vulnerability in UnZip 5.50 allows attackers to overwrite arbitrary files via invalid characters between two . (dot) characters, …EPSS 22%2.1CVE-2001-1268Info-zip unzip vulnerabilityDirectory traversal vulnerability in Info-ZIP UnZip 5.42 and earlier allows attackers to overwrite arbitrary files during archive extraction via a ..…EPSS 0.67%

Source: NIST National Vulnerability Database (record CVE-2018-1000031), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.