CVE-2026-31431

Vendor

Linux kernel, ABB, Datadog, Elastic

Product

Linux kernel, ABB automation / drives / relays, Datadog Agent, Elasticsearch / Kibana

CVSS

3.1

EPSS

0.16 (p97)

Exposure class

Operating system, OT / ICS, Network management, Database

Every item in the archive that references this CVE, highest rank first. Headlines open the publisher.

1. 51
   CISA advisory CISA 23 Jun 2026

   Impact of Linux Kernel vulnerabilities on B&R products

   B&R is aware of publicly reported vulnerabilities affecting the Linux kernel versions shipped with the products listed as affected in the advisory. Successful local exploitation of these vulnerabilities could allow an attacker to…

   PoC public CVSS 3.1 EPSS 0.16 CVE-2026-31431CVE-2026-43284CVE-2026-46333+2 more Linux kernel ABB
2. 34
   Research Elastic Security Labs 11 Sep 2026

   Linux Detection Engineering - Local Privilege Escalation

   Seven of the thirteen Linux privilege escalation CVEs we tracked in 2026 turned out to be the same copy-on-write bug pointed at different kernel interfaces. We ran the public proof-of-concept for eleven exploits and two…

   PoC public EPSS 0.16 CVE-2026-64600CVE-2026-31431CVE-2026-43284+8 more
3. 33
   Research Datadog Security Labs 28 May 2026

   From Exploit Code to Production Detection: Building a CVE-2026-31431 (Copy Fail) detection with Agents

   CVE-2026-31431 (Copy Fail) lets any unprivileged user corrupt the Linux page cache via AF_ALG sockets to escalate privileges. This post covers the exploit mechanics and how Datadog Security Research used coding agents to ship a…

   PoC public CVE-2026-31431 Datadog
4. 32
   CISA advisory CISA 17 Sep 2026

   ABB Ability Edgenius

   ABB is aware of public reports of a vulnerability CVE‑2026‑31431 (Copy Fail) in the product versions listed as affected in the advisory. An update is available that resolves a publicly reported vulnerability. CVE‑2026‑31431 (Copy…

   CVSS 3.1 Fix available CVE-2026-31431 Linux kernel ABB
5. 32
   CISA advisory CISA 14 Jul 2026

   ABB Ability Edgenius

   ABB is aware of public reports of a vulnerability CVE‑2026‑31431 (Copy Fail) in the product versions listed as affected in the advisory. An update is available that resolves a publicly reported vulnerability. CVE‑2026‑31431 (Copy…

   CVSS 3.1 Fix available CVE-2026-31431 Linux kernel ABB
6. 27
   Research Elastic Security Labs 9 May 2026

   Copy Fail and DirtyFrag: Linux Page Cache Bugs in the Wild

   This research analyzes the Linux kernel privilege escalation vulnerabilities Copy Fail and DirtyFrag, which exploit subtle page cache corruption bugs to create reliable paths to root access. Additionally, Elastic Security Labs is…

   CVE-2026-31431 Linux kernel Elastic
7. 26
   CISA advisory CISA 22 Sep 2026

   Siemens SIPLUS and SIMATIC Products

   Multiple Siemens products are vulnerable to the "Copy Fail" vulnerability. Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens is preparing further fix versions…

   CVSS 3.1 Fix available CVE-2026-31431 Siemens
8. 25
   Wiz Research Wiz 1 May 2026

   Copy Fail: Universal Linux Local Privilege Escalation Vulnerability

   Detect and mitigate Copy Fail (CVE-2026-31431), an easily exploitable vulnerability in the Linux kernel that allows escalation from an unprivileged local user account to root access.

   CVE-2026-31431 Linux kernel
9. 24
   Advisory Fortinet PSIRT 13 May 2026

   Linux Kernel Vulnerability copy.fail - CVE-2026-31431

   CVSSv3 Score: 7.8 CVE-2026-31431In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly reverts commit 72548b093ee3 except for the copying of the…

   CVSS 3.0 Fix available CVE-2026-31431 Fortinet Linux kernel