An information disclosure vulnerability exists in Visual Studio Code Live Share Extension when it exposes tokens in plain text, aka 'Visual…

published 2020-06-09 6y ago modified 2026-06-17 4mo ago also EUVD-2020-12219

cvss: 5.9; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 2.9%; EPSS 2.9% chance of exploitation in 30 days, percentile 87%
public exploits: 0; none known

An information disclosure vulnerability exists in Visual Studio Code Live Share Extension when it exposes tokens in plain text, aka 'Visual Studio Code Live Share Information Disclosure Vulnerability'.

Patch / fix

links 1

portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1343 advisory

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Exploit prediction

2.90% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.1	5.9	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

Microsoft Microsoft Visual Studio Code Live Share extension

Classification

Weakness

CWE-319 Cleartext Transmission of Sensitive Information

References

portal.msrc.microsoft.com /en-US/security-guidance/advisory/CVE-2020-1343
patch, vendor-advisory

Sources

CVE List CVE-2020-1343
NVD CVE-2020-1343

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