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Fencer Vulns
medium 5.0

CVE-2005-4718 json

Opera 8.02 and earlier allows remote attackers to cause a denial of service (client crash) via (1) a crafted HTML file with a "content: url…

published 2005-12-31 20 y ago modified 2026-06-16 4 mo ago also EUVD-2005-4711

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
10.2%
EPSS 10.2% chance of exploitation in 30 days, percentile 95%
public exploits
2
Exploit-DB

Summary

Opera 8.02 and earlier allows remote attackers to cause a denial of service (client crash) via (1) a crafted HTML file with a "content: url(0);" style attribute, a "bodyA" tag, a long string, and a "u" tag with a long attribute, as demonstrated by opera.html; and (2) a BGSOUND element with a "margin:-99;" STYLE attribute.

Timeline

  1. First public exploit (EDB-1255)
  2. Published

Exploit prediction

10.24% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-1255 Opera 8.02 - Remote Denial of Service (2) dos, 2005-10-16
  • EDB-1254 Opera 8.02 - Remote Denial of Service (1) dos, 2005-10-16
  • securitytracker.com http://securitytracker.com/id?1015067 referenced PoC, tagged "exploit" by a source, unverified
  • addict3d.org http://www.addict3d.org/index.php?page=viewarticle&type=security&ID=5055 referenced PoC, tagged "exploit" by a source, unverified
  • addict3d.org http://www.addict3d.org/index.php?page=viewarticle&type=security&ID=5054 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/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.