Red Hat vulnerabilities91 known to be exploited.

Vendor91 known exploited
The short answer

Red Hat has 5,740 published vulnerabilities across 538 products in our catalogue. 91 of them are on the list of flaws known to be exploited, so criminals are using them now. The most affected product is Enterprise Linux, with 2,039. If you run Red Hat software, patch the exploited flaws first.

See the exploited flaws

The most recent Red Hat flaw added to the known-exploited list is CVE-2022-0492, on 2 June 2026. We keep watching the known-exploited list.

Products

Which Red Hat products have the most vulnerabilities?

Enterprise Linux leads with 2,039 published vulnerabilities. Open a product to see its versions and which of its flaws criminals are already using.

Known exploited

Which Red Hat vulnerabilities are being exploited?

91 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.

  1. 7.8
    CVE-2022-0492HighKnown exploited
    Linux Kernel Improper Authentication Vulnerability

    Linux Kernel contains an improper authentication vulnerability which could allow for privilege escalation via the cgroups v1 release_agent feature.

    Chance of use5.5%Known exploited since2 Jun 2026
  2. 7.8
    CVE-2026-31431HighKnown exploited
    Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerability

    Linux Kernel contains an incorrect resource transfer between spheres vulnerability that could allow for privilege escalation.

    Chance of use96%Known exploited since1 May 2026
  3. 7.8
    CVE-2018-14634HighKnown exploited
    Linux Kernel Integer Overflow Vulnerability

    Linux Kernel contains an integer overflow vulnerability in the create_elf_tables() function which could allow an unprivileged local user with access to SUID (or otherwise privileged) binary to escalate their...

    Chance of use15%Known exploited since26 Jan 2026
  4. 9.3
    CVE-2025-32463CriticalKnown exploited
    Sudo Inclusion of Functionality from Untrusted Control Sphere Vulnerability

    Sudo contains an inclusion of functionality from untrusted control sphere vulnerability.

    Chance of use47%Known exploited since29 Sep 2025
  5. 7.5
    CVE-2019-5418HighKnown exploited
    Rails Ruby on Rails Path Traversal Vulnerability

    Rails Ruby on Rails contains a path traversal vulnerability in Action View.

    Chance of use99%Known exploited since7 Jul 2025
  6. 9.8
    CVE-2014-0497CriticalKnown exploited
    Adobe Flash Player Integer Underflow Vulnerablity

    Adobe Flash Player contains an integer underflow vulnerability that allows a remote attacker to execute arbitrary code.

    Chance of use>99%Known exploited since17 Sep 2024
  7. 8.8
    CVE-2013-0643HighKnown exploited
    Adobe Flash Player Incorrect Default Permissions Vulnerability

    Adobe Flash Player contains an incorrect default permissions vulnerability in the Firefox sandbox that allows a remote attacker to execute arbitrary code via crafted SWF content.

    Chance of use11%Known exploited since17 Sep 2024
  8. 8.8
    CVE-2013-0648HighKnown exploited
    Adobe Flash Player Code Execution Vulnerability

    Adobe Flash Player contains an unspecified vulnerability in the ExternalInterface ActionScript functionality that allows a remote attacker to execute arbitrary code via crafted SWF content.

    Chance of use11%Known exploited since17 Sep 2024
Exploit likelihood

Which Red Hat 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.

50% or more10% to 49%Under 10%
  1. >99%
    CVE-2012-1823CriticalKnown exploited

    sapi/cgi/cgi_main.c in PHP before 5.3.12 and 5.4.x before 5.4.2, when configured as a CGI script (aka php-cgi), does not properly handle query strings that lack an = (equals sign) character, which allows remote...

    CVSS9.8Published11 May 2012
  2. 97%
    CVE-2011-3544CriticalKnown exploited

    Unspecified vulnerability in the Java Runtime Environment component in Oracle Java SE JDK and JRE 7 and 6 Update 27 and earlier allows remote untrusted Java Web Start applications and untrusted Java applets to affect...

    CVSS9.8Published19 Oct 2011
  3. 94%

    http_protocol.c in (1) IBM HTTP Server 6.0 before 6.0.2.13 and 6.1 before 6.1.0.1, and (2) Apache HTTP Server 1.3 before 1.3.35, 2.0 before 2.0.58, and 2.2 before 2.2.2, does not sanitize the Expect header from an...

    CVSS4.3Published28 Jul 2006
  4. 94%
    CVE-2012-1723CriticalKnown exploited

    Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 update 4 and earlier, 6 update 32 and earlier, 5 update 35 and earlier, and 1.4.2_37 and earlier allows remote attackers...

    CVSS9.8Published16 Jun 2012
  5. 89%

    Apache Struts before 2.3.1.2 allows remote attackers to bypass security protections in the ParameterInterceptor class and execute arbitrary commands.

    CVSS9.8Published1 Nov 2019
  6. 83%
    CVE-2010-1871HighKnown exploited

    JBoss Seam 2 (jboss-seam2), as used in JBoss Enterprise Application Platform 4.3.0 for Red Hat Linux, does not properly sanitize inputs for JBoss Expression Language (EL) expressions, which allows remote attackers to...

    CVSS8.8Published5 Aug 2010
  7. 83%

    protocol.c in the Apache HTTP Server 2.2.x through 2.2.21 does not properly restrict header information during construction of Bad Request (aka 400) error documents, which allows remote attackers to obtain the values...

    CVSS4.3Published28 Jan 2012
  8. 80%

    Stack-based buffer overflow in the cons_options function in options.c in dhcpd in OpenBSD 4.0 through 4.2, and some other dhcpd implementations based on ISC dhcp-2, allows remote attackers to execute arbitrary code...

    CVSS7.2Published11 Oct 2007
  9. 80%

    ssl/s3_pkt.c in OpenSSL before 0.9.8i allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a DTLS ChangeCipherSpec packet that occurs before ClientHello.

    CVSS5.0Published4 Jun 2009
Every product

All Red Hat products we track.

445 products, most vulnerabilities first. Find the ones you run, then open a product to see its versions and exploited flaws.

This directory lists the 445 Red Hat products with at least one tracked version, of 538 in our catalogue.

EdgeProtect

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Our catalogue lists 5,740 published vulnerabilities across 538 products and 9,928 versions from Red Hat. The most recent Red Hat flaw added to the known-exploited list is CVE-2022-0492, on 2 June 2026.

91 Red Hat vulnerabilities are on the list of flaws known to be exploited. The most recently added are CVE-2022-0492, CVE-2026-31431 and CVE-2018-14634. The full list is on this page.

Enterprise Linux, with 2,039 published vulnerabilities. Its own page lists the ones known to be exploited.

Create a EdgeProtect account and track the Red Hat products you run. We match them against every published flaw, give each one a risk score from 0 to 100 and tell you as soon as we spot one that affects you, by email, in the app or by webhook.