CVE-2022-50258
7.8 · HIGHOverview
CVE-2022-50258 is a high-severity vulnerability affecting linux linux_kernel. It was published on September 15, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: brcmfmac: Fix potential stack-out-of-bounds in brcmf_c_preinit_dcmds()
This patch fixes a stack-out-of-bounds read in brcmfmac that occurs
when 'buf' that is not null-terminated is passed as an argument of
strsep() in brcmf_c_preinit_dcmds(). This buffer is filled with a firmware
version string by memcpy() in brcmf_fil_iovar_data_get().
The patch ensures buf is null-terminated.
Found by a modified version of syzkaller.
[ 47.569679][ T1897] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43236b for chip BCM43236/3
[ 47.582839][ T1897] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may have limited channels available
[ 47.601565][ T1897] ==================================================================
[ 47.602574][ T1897] BUG: KASAN: stack-out-of-bounds in strsep+0x1b2/0x1f0
[ 47.603447][ T1897] Read of size 1 at addr ffffc90001f6f000 by task kworker/0:2/1897
[ 47.
Remediation
Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| linux | linux_kernel | >= 0, < 4.14.308 | Affected |
References
Frequently Asked Questions
What is CVE-2022-50258?
CVE-2022-50258 is a high-severity vulnerability affecting linux linux_kernel. It was published on September 15, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).
How severe is CVE-2022-50258?
This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2022-50258?
Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2022-50258?
CyberStrike's AI-powered security agents can automatically detect CVE-2022-50258 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
Related HIGH CVEs from 2022
View all →Server-side JavaScript injection in Appsmith through 1.7.14 allows remote attackers to execute arbit
XWiki Platform Web Parent POM contains Web resources for the XWiki platform, a generic wiki platform
The XWiki Platform Index UI is an Index of all pages, attachments, orphans and deleted pages and att
XWiki Platform Attachment UI provides a macro to easily upload and select attachments for XWiki Plat
XWiki Platform Mentions UI is a user interface for mentioning users in wiki content for XWiki Platfo
Discourse is a platform for community discussion. Users who receive an invitation link that is not s
The Handy Tip macro in Stiltsoft Handy Macros for Confluence Server/Data Center 3.x before 3.5.5 all
There exists a path traversal vulnerability in the Android Google Search app. This is caused by the
In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function
In Userfrosting, versions v0.3.1 to v4.6.2 are vulnerable to Host Header Injection. By luring a vict
The Events Made Easy WordPress plugin before 2.2.36 does not sanitise and escape the search_text par
OroPlatform is a PHP Business Application Platform. In affected versions by sending a specially craf