CVE-2019-3688

Name: CVE-2019-3688
Creator: NVD / NIST
Published: 2019-10-07T14:15:11.977+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10EPSS 0.34%

Last modified Jun 17, 2026

CVE-2019-3688 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. The /usr/sbin/pinger binary packaged with squid in SUSE Linux Enterprise Server 15 before and including version 4.8-5.8.1 and in SUSE Linux Enterprise Server 12 before and including 3.5.21-26.17.1 had squid:root, 0750 permissions. This allowed an attacker that compromissed the squid user to gain persistence by changing the binary. EPSS estimates a 0.34% chance of exploitation in the next 30 days.

Description

The /usr/sbin/pinger binary packaged with squid in SUSE Linux Enterprise Server 15 before and including version 4.8-5.8.1 and in SUSE Linux Enterprise Server 12 before and including 3.5.21-26.17.1 had squid:root, 0750 permissions. This allowed an attacker that compromissed the squid user to gain persistence by changing the binary

Metrics

CVSS 3.1

7.1/10

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

EPSS Probability

0.34%

25.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Suse	Suse Linux Enterprise Server	12	Sp1
Suse	Suse Linux Enterprise Server	15	—

References

Timeline

Published: Oct 7, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-3688?

How severe is CVE-2019-3688?

CVE-2019-3688 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.34% probability of exploitation in the next 30 days.

How do I fix CVE-2019-3688?

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-2019-3688?

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

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Source: NVD / NIST