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Fencer Vulns
high 7.5

CVE-2004-0842 in the critical feed json

Internet Explorer 6.0 SP1 and earlier, and possibly other versions, allows remote attackers to cause a denial of service (application crash…

published 2004-09-14 22 y ago modified 2026-06-16 4 mo ago also EUVD-2004-0840

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
56.6%
EPSS 56.6% chance of exploitation in 30 days, percentile 99%
public exploits
1
Exploit-DB

Summary

Internet Explorer 6.0 SP1 and earlier, and possibly other versions, allows remote attackers to cause a denial of service (application crash from "memory corruption") via certain malformed Cascading Style Sheet (CSS) elements that trigger heap-based buffer overflows, as demonstrated using the "<STYLE>@;/*" string, possibly due to a missing comment terminator that may cause an invalid length to trigger a large memory copy operation, aka the "CSS Heap Memory Corruption Vulnerability."

Patch / fix

Timeline

  1. First public exploit (EDB-24328)
  2. Published

Exploit prediction

56.61% chance of exploitation in the next 30 days, higher than 99% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-24328 Microsoft Internet Explorer 5.0.1 - Style Tag Comment Memory Corruption remote, 2004-07-08
  • securityfocus.com http://www.securityfocus.com/bid/10816 referenced PoC, tagged "exploit" by a source, unverified
  • ecqurity.com http://www.ecqurity.com/adv/IEstyle.html referenced PoC, tagged "exploit" by a source, unverified

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.