7-zip up to 16.02 on Windows DLL Loader untrusted search path

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in 7-zip up to 16.02 on Windows. This issue affects some unknown processing of the component DLL Loader. Such manipulation leads to untrusted search path. This vulnerability is referenced as CVE-2016-7804. The attack can only be performed from a local environment. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in 7-zip up to 16.02 on Windows (File Compression Software). It has been rated as problematic. Affected by this issue is some unknown functionality of the component DLL Loader. The manipulation with an unknown input leads to a untrusted search path vulnerability. Using CWE to declare the problem leads to CWE-426. The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Untrusted search path vulnerability in 7 Zip for Windows 16.02 and earlier allows remote attackers to gain privileges via a Trojan horse DLL in an unspecified directory.

The bug was discovered 10/26/2016. The weakness was published 05/22/2017 (Website). The advisory is shared for download at jvn.jp. This vulnerability is handled as CVE-2016-7804 since 09/09/2016. The attack needs to be approached locally. A simple authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1574.

The vulnerability was handled as a non-public zero-day exploit for at least 208 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 16.03 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Untrusted search path
CWE: CWE-426
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: 7-zip 16.03

Timelineinfo

09/09/2016 🔍
10/26/2016 +47 days 🔍
05/22/2017 +208 days 🔍
05/22/2017 +0 days 🔍
05/22/2017 +0 days 🔍
05/04/2026 +3269 days 🔍

Sourcesinfo

Advisory: jvn.jp
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-7804 (🔍)
GCVE (CVE): GCVE-0-2016-7804
GCVE (VulDB): GCVE-100-101600
OSVDB: - CVE-2016-7804 - 7-Zip - Untrusted Search Path Issue

Entryinfo

Created: 05/23/2017 00:23
Updated: 05/04/2026 09:26
Changes: 05/23/2017 00:23 (59), 10/01/2020 17:51 (2), 05/04/2026 09:23 (2), 05/04/2026 09:26 (21)
Complete: 🔍
Committer: lywand
Cache ID: 216::103

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