CVE-2020-25623

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-10-02 · updated 2026-06-17
Weakness: CWE-22

Description

Erlang/OTP 22.3.x before 22.3.4.6 and 23.x before 23.1 allows Directory Traversal. An attacker can send a crafted HTTP request to read arbitrary files, if httpd in the inets application is used.

Affected products

Erlang OTP: from 22.3.0 before 22.3.4.6; from 23.0.0 before 23.1 — fixed in 22.3.4.6, 23.1

How to fix

Upgrade to a fixed version: Erlang OTP 22.3.4.6, 23.1. Check the vendor advisory for mitigations.

References

https://github.com/erlang/otp/releases/tag/OTP-23.1
https://www.erlang.org/downloads
https://www.erlang.org/news
https://github.com/erlang/otp/releases/tag/OTP-23.1
https://www.erlang.org/downloads
https://www.erlang.org/news

Get alerted when CVE-2020-25623 or the next vulnerability affects your stack