Vulnerabilitycritical
The vulnerability landscape in Q1 2026
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2017-0199 | Remote Code Execution in Microsoft Office and WordPad via crafted document files | 7.8 | 99% | KEVRansomwarePoC ×6 | KEV |
| CVE-2017-11882 | Memory Corruption RCE in Microsoft Office via Legacy Equation Editor | 7.8 | 100% | KEVRansomwarePoC ×10 | KEV |
| CVE-2018-0802 | Memory Corruption RCE in Microsoft Office Equation Editor | 7.8 | 93% | KEVRansomwarePoC ×3 | KEV |
| CVE-2019-13272 | Local Privilege Escalation to Root in Linux Kernel ptrace (pkexec PTRACE_TRACEME) | 7.8 | 52% | KEVPoC ×5 | KEV |
| CVE-2021-22555 | Linux Kernel Netfilter Heap OOB Write Enables Privilege Escalation (CVE-2021-22555) | 7.8 | 79% | KEVPoC ×5 | KEV |
| CVE-2022-0847 | Local Privilege Escalation ('Dirty Pipe') in the Linux Kernel | 7.8 | 93% | KEVPoC ×4 | KEV |
| CVE-2023-32233 | In the Linux kernel through 6.3.1, a use-after-free in Netfilter nf_tables when processing batch requests can be abused to perform arbitrary read and write… | 7.8 | 13% | ||
| CVE-2023-38831 | Code Execution in RARLAB WinRAR via Crafted ZIP File/Folder Name Confusion | 7.8 | 100% | KEVRansomwarePoC ×4 | KEV |
| CVE-2025-6218 | Directory Traversal RCE in RARLAB WinRAR | 7.8 | 90% | KEVPoC ×2 | KEV |
| CVE-2025-8088 | WinRAR Path Traversal (CVE-2025-8088) Enables Arbitrary Code Execution | 8.4 | 94% | KEVRansomware | KEV |
| CVE-2026-21509 | Local Security Feature Bypass in Microsoft Office Under Active Exploitation | 7.8 | 71% | KEV | KEV |
| CVE-2026-21513 | MSHTML Security Feature Bypass in Windows Exploited in the Wild (CVE-2026-21513) | 8.8 | 16% | KEV | KEV |
| CVE-2026-21514 | Actively Exploited Security Feature Bypass in Microsoft Word (CVE-2026-21514) | 7.8 | 2% | KEV | KEV |
From the original article
8 min read at securelist.com
During Q1 2026, the exploit kits leveraged by threat actors to target user systems expanded once again, incorporating new exploits for the Microsoft Office platform, as well as Windows and Linux operating systems. In this report, we dive into the statistics on published vulnerabilities and exploits, as well as the known vulnerabilities leveraged by popular C2 frameworks throughout Q1 2026.
By @Securelist · securelist.com
A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.