CVE-2019-12528

Name: CVE-2019-12528
Creator: NVD / NIST
Published: 2020-02-04T21:15:10.807+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 10.49%

Last modified Jun 17, 2026

CVE-2019-12528 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An issue was discovered in Squid before 4.10. It allows a crafted FTP server to trigger disclosure of sensitive information from heap memory, such as information associated with other users' sessions or non-Squid processes.. EPSS estimates a 10.49% chance of exploitation in the next 30 days.

Description

An issue was discovered in Squid before 4.10. It allows a crafted FTP server to trigger disclosure of sensitive information from heap memory, such as information associated with other users' sessions or non-Squid processes.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

10.49%

95.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Squid-Cache	Squid	< 4.10
Fedoraproject	Fedora	30
Fedoraproject	Fedora	31
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0
Opensuse	Leap	15.1
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	19.10

References

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00012.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00010.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00018.htmlMailing List, Third Party Advisory
http://www.squid-cache.org/Advisories/SQUID-2020_2.txtVendor Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00009.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G6W2IQ7QV2OGREFFUBNVZIDD3RJBDE4R/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TSU6SPANL27AGK5PCGBJOKG4LUWA555J/
https://security.gentoo.org/glsa/202003-34Third Party Advisory
https://usn.ubuntu.com/4289-1/Third Party Advisory
https://www.debian.org/security/2020/dsa-4682Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00012.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00010.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00018.htmlMailing List, Third Party Advisory
http://www.squid-cache.org/Advisories/SQUID-2020_2.txtVendor Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00009.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G6W2IQ7QV2OGREFFUBNVZIDD3RJBDE4R/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TSU6SPANL27AGK5PCGBJOKG4LUWA555J/
https://security.gentoo.org/glsa/202003-34Third Party Advisory
https://usn.ubuntu.com/4289-1/Third Party Advisory
https://www.debian.org/security/2020/dsa-4682Third Party Advisory

Timeline

Published: Feb 4, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-12528?

How severe is CVE-2019-12528?

CVE-2019-12528 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 10.49% probability of exploitation in the next 30 days.

How do I fix CVE-2019-12528?

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-2019-12528?

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

Scan your code now

Source: NVD / NIST