CVE-2018-1992
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.4epss 0.4%
exploitation probability
0.4%top 73% of all CVEs
observed exploitation
nono source reports it
The IBM Power 9 OP910, OP920, and FW910 boot firmware's bootloader is responsible for loading and validating the initial boot firmware image that drives the rest of the system's hardware initialization. The bootloader firmware contains a buffer overflow vulnerability such that, if an attacker were able to replace the initial boot firmware image with a very carefully crafted and sufficiently large, malicious replacement, it could cause the bootloader, during the load of that image, to overwrite its own instruction memory and circumvent secure boot protections, install trojans, etc. IBM X-Force ID: 154345.
CVSS:3.0/PR:H/AV:L/S:U/I:H/UI:N/AC:H/A:H/C:H/RC:C/E:U/RL:O
Affected products
IBM · Power 9 Systems