#VU125769 Improper Authentication in otp - CVE-2020-35733
Published: April 10, 2026
Vulnerability identifier: #VU125769
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-35733
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
otp
otp
Software vendor:
erlang
erlang
Description
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to improper authentication in the ssl component when validating a certificate chain that includes a trusted root certificate. A remote attacker can present a fake certificate chain to disclose sensitive information.
The issue only occurs under conditions when the root certificate is sent in the chain.
Remediation
Install security update from vendor's website.