Enterprise Linux for Ibm Z Systems vulnerabilitiesAnd the versions its exploited flaws hit.
Enterprise Linux for Ibm Z Systems is made by Red Hat. We track 108 published vulnerabilities listed under that exact name, across 25 versions. 20 of them are on the list of flaws known to be exploited, the newest added on 2 June 2026. Red Hat lists newer releases under their own names, such as Enterprise Linux for Ibm Z Systems Eus, so check those pages too.
The most recent Enterprise Linux for Ibm Z Systems flaw added to the known-exploited list is CVE-2022-0492, on 2 June 2026. We keep watching the known-exploited list.
Is Enterprise Linux for Ibm Z Systems listed under other names? Yes.
Red Hat also lists Enterprise Linux for Ibm Z Systems under more specific names, such as Enterprise Linux for Ibm Z Systems Eus and Enterprise Linux for Ibm Z Systems Eus S390x. Flaws listed only under those names are counted on their own pages, not here. If you run one of these, open its page for its own exploited flaws.
- Enterprise Linux for Ibm Z Systems Eus83 published vulnerabilities
- Enterprise Linux for Ibm Z Systems Eus S390x7 published vulnerabilities
- Enterprise Linux for Ibm Z Systems S390x3 published vulnerabilities
- Enterprise Linux for Ibm Z Systems (structure A)2 published vulnerabilities
- Enterprise Linux for Ibm Z Systems 8 S390x1 published vulnerability
Which versions of Enterprise Linux for Ibm Z Systems do the exploited flaws hit?
Each exploited flaw lists the versions it affects, as published by the vendor. Find your version, then patch.
- CVE-2022-0492Exploited list, 2 Jun 2026
Linux Kernel Improper Authentication Vulnerability
8.0 - CVE-2024-1086Exploited list, 30 May 2024
Linux Kernel Use-After-Free Vulnerability
7.0_s390x - CVE-2023-4911Exploited list, 21 Nov 2023
GNU C Library Buffer Overflow Vulnerability
9.0_s390x - CVE-2021-4034Exploited list, 27 Jun 2022
Red Hat Polkit Out-of-Bounds Read and Write Vulnerability
7.08.0 - CVE-2019-8720Exploited list, 23 May 2022
WebKitGTK Memory Corruption Vulnerability
7.08.0 - CVE-2022-0847Exploited list, 25 Apr 2022
Linux Kernel Privilege Escalation Vulnerability
8.0 - CVE-2019-11043Exploited list, 25 Mar 2022
PHP FastCGI Process Manager (FPM) Buffer Overflow Vulnerability
6.0_s390x7.0_s390x8.0_s390x - CVE-2017-12615Exploited list, 25 Mar 2022
Apache Tomcat on Windows Remote Code Execution Vulnerability
7.0_s390x - CVE-2017-12617Exploited list, 25 Mar 2022
Apache Tomcat Remote Code Execution Vulnerability
6.0_s390x7.0_s390x - CVE-2015-4902Exploited list, 3 Mar 2022
Oracle Java SE Integrity Check Vulnerability
5.0_s390x6.0_s390x7.0_s390x - CVE-2013-1675Exploited list, 3 Mar 2022
Mozilla Firefox Information Disclosure Vulnerability
5.0_s390x6.0_s390x - CVE-2015-2590Exploited list, 3 Mar 2022
Oracle Java SE and Java SE Embedded Remote Code Execution Vulnerability
6.0_s390x - CVE-2014-6271Exploited list, 28 Jan 2022
GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability
5.9_s390x6.4_s390x6.5_s390x7.3_s390x7.4_s390x7.5_s390x7.6_s390x7.7_s390x - CVE-2014-7169Exploited list, 28 Jan 2022
GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability
5.9_s390x6.4_s390x6.5_s390x7.3_s390x7.4_s390x7.5_s390x7.6_s390x7.7_s390x - CVE-2019-13272Exploited list, 10 Dec 2021
Linux Kernel Improper Privilege Management Vulnerability
7.0_s390x - CVE-2021-40438Exploited list, 1 Dec 2021
Apache HTTP Server-Side Request Forgery (SSRF)
7.0_s390x8.0 - CVE-2016-3715Exploited list, 3 Nov 2021
ImageMagick Arbitrary File Deletion Vulnerability
6.0_s390x7.0_s390x - CVE-2019-5544Exploited list, 3 Nov 2021
VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Vulnerability
6.0_s390x7.0_s390x - CVE-2016-3718Exploited list, 3 Nov 2021
ImageMagick Server-Side Request Forgery (SSRF) Vulnerability
6.0_s390x7.0_s390x - CVE-2019-0211Exploited list, 3 Nov 2021
Apache HTTP Server Privilege Escalation Vulnerability
8.0_s390x
Which Enterprise Linux for Ibm Z Systems vulnerabilities are being exploited?
20 flaws are on the government list of vulnerabilities known to be exploited. These are the ones criminals are using now, so they go first, whatever their severity score says.
- 7.8Linux Kernel Improper Authentication Vulnerability
Linux Kernel contains an improper authentication vulnerability which could allow for privilege escalation via the cgroups v1 release_agent feature.
- 7.8Linux Kernel Use-After-Free Vulnerability
Linux kernel contains a use-after-free vulnerability in the netfilter: nf_tables component that allows an attacker to achieve local privilege escalation.
- 7.8GNU C Library Buffer Overflow Vulnerability
GNU C Library's dynamic loader ld.so contains a buffer overflow vulnerability when processing the GLIBC_TUNABLES environment variable, allowing a local attacker to execute code with elevated privileges.
- 7.8Red Hat Polkit Out-of-Bounds Read and Write Vulnerability
The Red Hat polkit pkexec utility contains an out-of-bounds read and write vulnerability that allows for privilege escalation with administrative rights.
- 8.8WebKitGTK Memory Corruption Vulnerability
WebKitGTK contains a memory corruption vulnerability which can allow an attacker to perform remote code execution.
- 7.8Linux Kernel Privilege Escalation Vulnerability
Linux kernel contains an improper initialization vulnerability where an unprivileged local user could escalate their privileges on the system.
- 8.7PHP FastCGI Process Manager (FPM) Buffer Overflow Vulnerability
In some versions of PHP in certain configurations of FPM setup, it is possible to cause FPM module to write past allocated buffers allowing the possibility of remote code execution.
- 8.1Apache Tomcat on Windows Remote Code Execution Vulnerability
When running Apache Tomcat on Windows with HTTP PUTs enabled, it is possible to upload a JSP file to the server via a specially crafted request.
Which Enterprise Linux for Ibm Z Systems flaws are most likely to be used?
Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.
- >99%
GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variables, which allows remote attackers to execute arbitrary code via a crafted environment, as demonstrated by...
- >99%
A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user.
- >99%
When running Apache Tomcat versions 9.0.0.M1 to 9.0.0, 8.5.0 to 8.5.22, 8.0.0.RC1 to 8.0.46 and 7.0.0 to 7.0.81 with HTTP PUTs enabled (e.g.
- >99%
GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed function definitions in the values of environment variables, which allows remote attackers to write to files or possibly have unknown...
- >99%
When running Apache Tomcat 7.0.0 to 7.0.79 on Windows with HTTP PUTs enabled (e.g.
- >99%CVE-2024-6387High
A security regression (CVE-2006-5051) was discovered in OpenSSH's server (sshd).
- >99%
In PHP versions 7.1.x below 7.1.33, 7.2.x below 7.2.24 and 7.3.x below 7.3.11 in certain configurations of FPM setup it is possible to cause FPM module to write past allocated buffers into the space reserved for FCGI...
- 97%
OpenSLP as used in ESXi and the Horizon DaaS appliances has a heap overwrite issue.
- 95%
A local privilege escalation vulnerability was found on polkit's pkexec utility.
- 90%CVE-2020-9490High
Apache HTTP Server versions 2.4.20 to 2.4.43.
Running Enterprise Linux for Ibm Z Systems? We'll keep checking.
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1 flaw being exploited affects software Acme tracks
Linux Kernel contains an improper authentication vulnerability which could allow for privilege escalation via the cgroups v1 release_agent feature.
- Matched to
- Enterprise Linux for Ibm Z Systems on Acme's software list
- What to do
- Patch first, then check for signs of use
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
We track 108 published vulnerabilities listed under the name Enterprise Linux for Ibm Z Systems, across 25 versions. The most recent Enterprise Linux for Ibm Z Systems flaw added to the known-exploited list is CVE-2022-0492, on 2 June 2026.
20 are on the list of flaws known to be exploited. The most recently added are CVE-2022-0492, CVE-2024-1086 and CVE-2023-4911.
Red Hat also lists Enterprise Linux for Ibm Z Systems under more specific names, such as Enterprise Linux for Ibm Z Systems Eus and Enterprise Linux for Ibm Z Systems Eus S390x. Flaws listed only under those names are counted on their own pages, not here. Open the release you run to see its own list.
Each flaw names its own versions, usually as ranges. The newest, CVE-2022-0492, affects 8.0. The versions for every exploited flaw are listed on this page.
Create a EdgeProtect account and track Enterprise Linux for Ibm Z Systems. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.