VulnerabilityAnalyzed
CVE-2025-5866
A vulnerability classified as critical has been found in RT-Thread 5.1.0.
HIGH 8.6EPSS 0.92%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.92%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A vulnerability classified as critical has been found in RT-Thread 5.1.0. This affects the function sys_sigprocmask of the file rt-thread/components/lwp/lwp_syscall.c. The manipulation of the argument how leads to improper validation of array index.
- CVSS 4.0
- 8.6 HIGHCVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.92% probability · 58th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119, CWE-129
- Affected
- rt-thread/rt-thread
- Source
- cna@vuldb.com
References
- https://github.com/RT-Thread/rt-thread/issues/10300Exploit, Issue Tracking, Third Party Advisory
- https://vuldb.com/?ctiid.311625Permissions Required, VDB Entry
- https://vuldb.com/?id.311625Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.584127Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.