Visual Studio
CVE-2020-1343 — Visual Studio Code Live Share Information Disclosure Vulnerability
Executive Summary
An information disclosure vulnerability exists in Visual Studio Code Live Share Extension when it exposes tokens in plain text. To exploit the vulnerability, an attacker would need to perform a successful capture of the tokens from client to proxy, where specific proxy settings are being used, making this very difficult to exploit. The update address the vulnerability by modifying the way Visual Studio Code Live Share communicates with clients to proxies.
Overview
5.9
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
Not Found
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
ATTACK VECTOR
Network
ATTACK COMPLEXITY
High
PRIVILEGES REQUIRED
None
USER INTERACTION
None
SCOPE
Unchanged
EPSS Score
0.02826
probability of exploitation in the next 30 days
0.8535 percentile - updated 2026-08-14
View on FIRST.org
Affected Products
1 affected product
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Microsoft Visual Studio Code Live Share extension | Release Notes (Security Update) |
Important | Information Disclosure | Maybe |
Patches
1 patch
| Article | Type | Restart |
|---|---|---|
Release Notes |
Security Update | Maybe |
Exploits & PoC
No public exploit or PoC has been linked for this CVE yet. When available, references are sourced from public repositories and may be unverified or non-functional — review carefully before use.
Detection Rules
No public Sigma or Nuclei detection rule has been mapped to this CVE yet. Coverage is concentrated on exploited / high-profile vulnerabilities; check SigmaHQ for updates.
Acknowledgments
References
On This Page