CVE-2000-0457 : 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	–	–	25.6%	–	–
2022-04-03	–	–	25.6%	–	–
2023-03-12	–	–	–	15.79%	–
2023-07-23	–	–	–	31.05%	–
2023-11-12	–	–	–	31.05%	–
2024-02-11	–	–	–	40.85%	–
2024-06-02	–	–	–	40.85%	–
2024-08-25	–	–	–	22.21%	–
2025-01-19	–	–	–	22.21%	–
2025-03-18	–	–	–	–	88.47%
2025-03-30	–	–	–	–	84.39%
2025-03-30	–	–	–	–	84.39,%

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	96%
2022-04-03	97%
2023-03-12	95%
2023-07-23	96%
2023-11-12	97%
2024-02-11	97%
2024-06-02	97%
2024-08-25	97%
2025-01-19	97%
2025-03-18	99%
2025-03-30	99%
2025-03-30	99%

source: https://www.securityfocus.com/bid/1193/info Requesting a known filename with the extension replaced with .htr preceeded by approximately 230 "%20" (which is an escaped character that represents a space) from Microsoft IIS 4.0/5.0 will cause the server to retrieve the file and its contents. This is due to the .htr file extension being mapped to ISM.DLL ISAPI application which redirects .htr file requests to ISM.DLL. ISM.DLL removes the extraneous "%20" and replaces .htr with the proper filename extension and reveals the source of the file. This vulnerability is similar to a more recently discovered variant, BugTraq ID 1488. This action can only be performed if a .htr request has not been previously made or if ISM.DLL is loaded into memory for the first time. If an .htr request has already been made, a restart of the web server is necessary in order to perform another. http://target/filename%20(repeated approx 230 times).htr