Linux vulnerabilities80 known to be exploited.
Linux has 12,142 published vulnerabilities across 19 products in our catalogue. 80 of them are on the list of flaws known to be exploited, so criminals are using them now. The most affected product is Linux kernel, with 12,101. If you run Linux software, patch the exploited flaws first.
The most recent Linux flaw added to the known-exploited list is CVE-2026-102490, on 2 October 2026. We keep watching the known-exploited list.
Which Linux products have the most vulnerabilities?
Linux kernel leads with 12,101 published vulnerabilities. Open a product to see its versions and which of its flaws criminals are already using.
Which Linux vulnerabilities are being exploited?
80 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.
- 9.4Zammad GmbH Zammad Improper Privilege Management Vulnerability
Zammad GmbH Zammad contains an improper privilege management vulnerability that can allow the local zammad user to escalate privileges to root.
- 9.4Zammad GmbH Zammad Session Fixation Vulnerability
Zammad GmbH Zammad contains a session fixation vulnerability that can lead to remote code execution as the zammad user.
- 9.8Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability
Linux Kernel contains an improper check for unusual or exceptional conditions vulnerability in the TLS receive path which allows a zero-length record retrieved from the rx_list to bypass the intended recvmsg()...
- 7.8Linux Kernel Out-of-Bounds Write Vulnerability
Linux Kernel contains an out-of-bounds memory write vulnerability which could allow a local user to gain privileged access or cause a denial of service on the system.
- 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 Incorrect Resource Transfer Between Spheres Vulnerability
Linux Kernel contains an incorrect resource transfer between spheres vulnerability that could allow for privilege escalation.
- 7.8Linux 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...
- 7.8Broadcom VMware Aria Operations and VMware Tools Privilege Defined with Unsafe Actions Vulnerability
Broadcom VMware Aria Operations and VMware Tools contain a privilege defined with unsafe actions vulnerability.
Which Linux 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.
- 83%CVE-2009-3733Medium
Directory traversal vulnerability in VMware Server 1.x before 1.0.10 build 203137 and 2.x before 2.0.2 build 203138 on Linux, VMware ESXi 3.5, and VMware ESX 3.0.3 and 3.5 allows remote attackers to read arbitrary...
- 79%CVE-2008-5499Critical
Unspecified vulnerability in Adobe Flash Player for Linux 10.0.12.36, and 9.0.151.0 and earlier, allows remote attackers to execute arbitrary code via a crafted SWF file.
- 75%CVE-1999-0128Medium
Oversized ICMP ping packets can result in a denial of service, aka Ping o' Death.
- 73%CVE-2003-0001Medium
Multiple ethernet Network Interface Card (NIC) device drivers do not pad frames with null bytes, which allows remote attackers to obtain information from previous packets or kernel memory by using malformed packets,...
- 71%CVE-1999-0513Medium
ICMP messages to broadcast addresses are allowed, allowing for a Smurf attack that can cause a denial of service.
- 70%CVE-2010-3654Critical
Adobe Flash Player before 9.0.289.0 and 10.x before 10.1.102.64 on Windows, Mac OS X, Linux, and Solaris and 10.1.95.1 on Android, and authplay.dll (aka AuthPlayLib.bundle or libauthplay.so.0.0.0) in Adobe Reader and...
- 38%CVE-2007-6514Medium
Apache HTTP Server, when running on Linux with a document root on a Windows share mounted using smbfs, allows remote attackers to obtain unprocessed content such as source files for .php programs via a trailing "\"...
All Linux products we track.
13 products, most vulnerabilities first. Find the ones you run, then open a product to see its versions and exploited flaws.
- Linux kernellinux_kernel12,101 vulnerabilities5,163 versions
- Tizentizen13 vulnerabilities11 versions
- Kernelkernel12 vulnerabilities151 versions
- Acrnacrn7 vulnerabilities359 versions
- Util-Linuxutil-linux4 vulnerabilities17 versions
- Direct Connectdirect_connect2 vulnerabilities9 versions
- Dhcp6cdhcp6c1 vulnerability1 version
- Infiniband Hfi1 Driverinfiniband_hfi1_driver1 vulnerability1 version
- Ipsec Tools Racoon Daemonipsec_tools_racoon_daemon1 vulnerability12 versions
- Linux Kernel Ixgbelinux_kernel_ixgbe1 vulnerability1 version
- Linux Kernel-Rtlinux_kernel-rt1 vulnerability1 version
- Parduslinuxparduslinux1 vulnerability2 versions
- Systemdsystemd1 vulnerability1 version
This directory lists the 13 Linux products with at least one tracked version, of 19 in our catalogue.
Running Linux? We'll keep checking.
Looking flaws up one at a time doesn't scale. Tell us what you run once, and we tell you which flaws matter to you, in what order, and keep watching for new ones.
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1 flaw being exploited affects software Acme tracks
Zammad GmbH Zammad contains an improper privilege management vulnerability that can allow the local zammad user to escalate privileges to root. This vulnerability can be chained with CVE-2026-102489.
- Matched to
- Linux 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.
Our catalogue lists 12,142 published vulnerabilities across 19 products and 5,729 versions from Linux. The most recent Linux flaw added to the known-exploited list is CVE-2026-102490, on 2 October 2026.
80 Linux vulnerabilities are on the list of flaws known to be exploited. The most recently added are CVE-2026-102490, CVE-2026-102489 and CVE-2025-39682. The full list is on this page.
Linux kernel, with 12,101 published vulnerabilities. Its own page lists the ones known to be exploited.
Create a Precursor Intelligence account and track the Linux 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.