CVSS 4.0
5.3 mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:LCVE-2026-82480
Medium (5.3). EPSS 0.4% chance of exploitation in the next 30 days.
A security flaw has been discovered in NASA cFS up to 7.0.1. The affected element is the function CFE_SB_GetUserDataLength of the file src/cFS/cfe/modules/sb/fsw/src/cfe_sb_util.c of the component cFE Software Bus. Performing a manipulation of the argument TotalMsgSize/HdrSize results in integer underflow. It is possible to initiate the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
CVSS 3.1
7.4 highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 31% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-189, CWE-191
- Published
- Modified
- Record from
- the NVD, synced