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Fencer Vulns
high 7.5

CVE-2000-0970 in the critical feed json

IIS 4.0 and 5.0 .ASP pages send the same Session ID cookie for secure and insecure web sessions, which could allow remote attackers to hija…

published 2000-12-19 25 y ago modified 2026-09-23 46 d ago also EUVD-2000-0957

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
45.7%
EPSS 45.7% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

IIS 4.0 and 5.0 .ASP pages send the same Session ID cookie for secure and insecure web sessions, which could allow remote attackers to hijack the secure web session of the user if that user moves to an insecure session, aka the "Session ID Cookie Marking" vulnerability.

Exploit prediction

45.66% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.