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Fencer Vulns
critical 9.3

CVE-2009-1209 in the critical feed json

Stack-based buffer overflow in W3C Amaya Web Browser 11.1 allows remote attackers to execute arbitrary code via a script tag with a long de…

published 2009-04-01 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-1208

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
12.4%
EPSS 12.4% chance of exploitation in 30 days, percentile 96%
public exploits
3
Exploit-DB

Summary

Stack-based buffer overflow in W3C Amaya Web Browser 11.1 allows remote attackers to execute arbitrary code via a script tag with a long defer attribute.

Timeline

  1. First public exploit (EDB-8321)
  2. Published

Exploit prediction

12.37% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-9330 Amaya 11.2 - W3C Editor/Browser (defer) Remote Buffer Overflow (SEH) remote, 2009-08-03
  • EDB-8321 Amaya 11.1 - W3C Editor/Browser 'defer' Remote Stack Overflow remote, 2009-03-30
  • EDB-8314 Amaya 11.1 - W3C Editor/Browser (defer) Stack Overflow (PoC) dos, 2009-03-30
  • securityfocus.com http://www.securityfocus.com/bid/34295 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.