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Vulnerability record · CVE-2016-2334 · published 13 December 2016

CVE-2016-2334: 7-zip memory buffer overflow vulnerability

7 Zip · 7 Zip

Heap-based buffer overflow in the NArchive::NHfs::CHandler::ExtractZlibFile method in 7zip before 16.00 and p7zip allows remote attackers to execute arbitrary code via a crafted HFS+ image.

7.8 CVSS 3.0 High EPSS 15% · top 3.4% CWE-119 · Memory buffer overflow
7.8CVSS 3.0 base score, v2 9.3
15%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
18References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

Heap-based buffer overflow in the NArchive::NHfs::CHandler::ExtractZlibFile method in 7zip before 16.00 and p7zip allows remote attackers to execute arbitrary code via a crafted HFS+ image.

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

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

References

LinkTags
http://blog.talosintel.com/2016/05/multiple-7-zip-vulnerabilities.html ExploitThird Party Advisory
http://blog.talosintelligence.com/2017/11/exploiting-cve-2016-2334.html
http://www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.html PatchThird Party Advisory
http://www.securityfocus.com/bid/90531 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1035876 Third Party AdvisoryVDB Entry
http://www.talosintel.com/reports/TALOS-2016-0093/ ExploitThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DNYIQAU3FKFBNFPK6GKYTSV
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DTGWICT3KYYDPDXRNO5SXD3
https://security.gentoo.org/glsa/201701-27
http://blog.talosintel.com/2016/05/multiple-7-zip-vulnerabilities.html ExploitThird Party Advisory
http://blog.talosintelligence.com/2017/11/exploiting-cve-2016-2334.html
http://www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.html PatchThird Party Advisory
http://www.securityfocus.com/bid/90531 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1035876 Third Party AdvisoryVDB Entry
http://www.talosintel.com/reports/TALOS-2016-0093/ ExploitThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DNYIQAU3FKFBNFPK6GKYTSV
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DTGWICT3KYYDPDXRNO5SXD3
https://security.gentoo.org/glsa/201701-27

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

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Source: NIST National Vulnerability Database (record CVE-2016-2334), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.