CVE-2026-45254— Incorrect libcap_net limitation list manipulation
Possible ATT&CK Techniques 1AI
T1068 · Exploitation for Privilege EscalationGet alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-45254
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Incorrect libcap_net limitation list manipulation
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the case of the cap_net service, when a key present in the old limit was omitted from the new limit, the missing key was treated as "allow any" instead of being rejected. In certain scenarios, an application that had previously restricted a subset of network operations could ask for a new limit that extended the permissions of the process.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
特权管理不恰当
Source: NVD (National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-45254
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-45254
请登录查看更多情报信息。
Advisory · 1
Same Patch Batch · FreeBSD · 2026-05-21 · 7 CVEs total
| CVE-2026-45250 | Stack buffer overflow via setcred(2) | |
| CVE-2026-45252 | Heap overflow in FUSE_LISTXATTR | |
| CVE-2026-45255 | Remote code execution via installer Wi-Fi access point scans | |
| CVE-2026-45251 | Kernel use-after-free via file descriptor syscalls | |
| CVE-2026-45253 | Missing validation in ptrace(PT_SC_REMOTE) | |
| CVE-2026-39461 | select(2) file descriptor set overflow causes stack overflow |
IV. Related Vulnerabilities
Same product: FreeBSD
- CVE-2026-45255
Remote code execution via installer Wi-Fi access point scans - CVE-2026-39461
select(2) file descriptor set overflow causes stack overflow - CVE-2026-45253
Missing validation in ptrace(PT_SC_REMOTE) - CVE-2026-45252
Heap overflow in FUSE_LISTXATTR - CVE-2026-45251
Kernel use-after-free via file descriptor syscalls
Same vendor: FreeBSD
- CVE-2026-45255
Remote code execution via installer Wi-Fi access point scans - CVE-2026-39461
select(2) file descriptor set overflow causes stack overflow - CVE-2026-45253
Missing validation in ptrace(PT_SC_REMOTE) - CVE-2026-45252
Heap overflow in FUSE_LISTXATTR - CVE-2026-45251
Kernel use-after-free via file descriptor syscalls
Same weakness: CWE-269
- CVE-2026-5118
Divi Form Builder <= 5.1.2 - Unauthenticated Privilege Escal - CVE-2026-7467
Read More & Accordion <= 3.5.7 - Privilege Escalation via im - CVE-2026-7284
Easy Elements for Elementor <= 1.4.4 - Unauthenticated Privi - CVE-2026-8719
AI Engine 3.4.9 - Authenticated (Subscriber+) Privilege Esca - CVE-2026-45395
Open WebUI: Missing `workspace.tools` Authorization Check on
V. Comments for CVE-2026-45254
No comments yet