HOMEVULNERABILITIESCVE-2021-35005
LOW

CVE-2021-35005

CWE-129Published: January 24, 2022· Updated: Jun 17, 2026

3.3
CVSS v3.1

Official Description

This vulnerability allows local attackers to disclose sensitive information on affected installations of TeamViewer. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the TeamViewer service. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated array. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-13818.

NVD Source

Technical Analysis

CVE-2021-35005 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected Vendors & Products

teamviewer1 product(s)
teamviewer
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://community.teamviewer.com/English/discussion/117794/august-updates-security-patches
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-22-082/
ADVISORYhttps://community.teamviewer.com/English/discussion/117794/august-updates-security-patches
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-22-082/

All References (4)

→
https://community.teamviewer.com/English/discussion/117794/august-updates-security-patchesVendor Advisory
→
https://www.zerodayinitiative.com/advisories/ZDI-22-082/Third Party Advisory · VDB Entry
→
https://community.teamviewer.com/English/discussion/117794/august-updates-security-patchesVendor Advisory
→
https://www.zerodayinitiative.com/advisories/ZDI-22-082/Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2021-35005
CVSS Score3.3 / 10
SeverityLOW
WeaknessCWE-129
CISA KEVNo
Affected1 vendor(s)
PublishedJan 24, 2022

Related CVEs (CWE-129)

CVE-2020-27485
9.9
CVE-2020-27483
9.9
CVE-2026-21413
9.8
CVE-2024-31581
9.8
CVE-2023-0755
9.8
CVE-2022-25720
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-35005 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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