TeamViewer Full Client/Host up to 15.81.5 Installer Staging Directory access control

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.6$0-$5k1.91

Summaryinfo

A vulnerability has been found in TeamViewer Full Client and Host and classified as very critical. This issue affects some unknown processing of the component Installer Staging Directory. The manipulation leads to access control. This vulnerability is traded as CVE-2026-111583. An attack has to be approached locally. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in TeamViewer Full Client and Host. It has been rated as very critical. This issue affects an unknown part of the component Installer Staging Directory. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Improper access control in the installer staging directory used by TeamViewer Full Client and Host prior to version 15.82 for Windows during installation of Advanced Asset Management allows a local authenticated user with low privileges to execute arbitrary commands as SYSTEM. An attacker can place a crafted installer options file that is processed by the Advanced Asset Management installer during service activation.

The advisory is shared at teamviewer.com. The identification of this vulnerability is CVE-2026-111583 since 10/16/2026. The exploitation is known to be easy. An attack has to be approached locally. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/27/2026). MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading to version 15.82 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 8.2
VulDB Temp Score: 7.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.3
CNA Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined
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: Full Client/Host 15.82

Timelineinfo

10/16/2026 CVE reserved
10/27/2026 +11 days Advisory disclosed
10/27/2026 +0 days VulDB entry created
10/27/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: teamviewer.com
Status: Confirmed

CVE: CVE-2026-111583 (🔒)
GCVE (CVE): GCVE-0-2026-111583
GCVE (VulDB): GCVE-100-427409

Entryinfo

Created: 10/27/2026 16:36
Changes: 10/27/2026 16:36 (63)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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