Out-of-bounds Read in Teamviewer
CVE-2021-35005
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.009 (57.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Teamviewer — versions 15.18.5.0
Weakness classification (CWE)
References
- www.zerodayinitiative.com/advisories/ZDI-22-082/ (VDB Entry, Third Party Advisory)
- community.teamviewer.com/English/discussion/117794/august-updates-security-patc… (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-35005?
- CVE-2021-35005 is a low-severity vulnerability in Teamviewer, classified under Improper Validation of Array Index. CVSS score: 3.3/10. Published 2022-01-24.
- How severe is CVE-2021-35005?
- Low severity. CVSS v3 base score is 3.3 out of 10.