CVE-2019-5152

Name: CVE-2019-5152
Creator: NVD / NIST
Published: 2019-12-18T15:15:11.333+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.4/10EPSS 1.38%

Last modified Jun 17, 2026

CVE-2019-5152 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. An exploitable information disclosure vulnerability exists in the network packet handling functionality of Shadowsocks-libev 3.3.2. When utilizing a Stream Cipher, a specially crafted set of network packets can cause an outbound connection from the server, resulting in information disclosure. EPSS estimates a 1.38% chance of exploitation in the next 30 days.

Description

An exploitable information disclosure vulnerability exists in the network packet handling functionality of Shadowsocks-libev 3.3.2. When utilizing a Stream Cipher, a specially crafted set of network packets can cause an outbound connection from the server, resulting in information disclosure. An attacker can send arbitrary packets to trigger this vulnerability.

Metrics

CVSS 3.1

7.4/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS Probability

1.38%

68.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Shadowsocks	Shadowsocks-Libev	3.3.2

References

https://talosintelligence.com/vulnerability_reports/TALOS-2019-0942Exploit, Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0942Exploit, Third Party Advisory

Timeline

Published: Dec 18, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-5152?

How severe is CVE-2019-5152?

CVE-2019-5152 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 1.38% probability of exploitation in the next 30 days.

How do I fix CVE-2019-5152?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-5152?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST