CVE-2009-1209

Exp

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.

Published: 2009-04-01 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2009-1209 is rated High Exploit Risk (85.5/100): CVSS Critical severity, with high exploitation likelihood (EPSS 28.79%, 97th percentile). Core evidence: 4 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2009-1209

EDB-ID Source Kind Published Link
9330 exploit_db edb 2009-08-03 Exploit-DB ↗
8321 exploit_db edb 2009-03-30 Exploit-DB ↗
8314 exploit_db edb 2009-03-30 Exploit-DB ↗
nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2009-1209

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-22 29.30% 28.79% -0.50%
2 2025-08-21 27.99% 29.30% +1.30%
3 2025-03-30 27.99%

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-1209

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
8.6 10.0 [email protected]

Weakness enumeration for CVE-2009-1209

OS Trackers for CVE-2009-1209

vendor priority summary link
ubuntu medium CVE-2009-1209 medium priority: Ubuntu including 1 source packages (amaya), 11 status rows across 11 suites (dapper, gutsy, hardy, intrepid, jaunty, karmic, lucid, maverick, natty, oneiric, upstream): DNE 6, ignored 4, needs-triage 1. https://ubuntu.com/security/CVE-2009-1209

Affected software / configurations for CVE-2009-1209

Vendor Product Version Raw CPE
w3 amaya 11.1 cpe:2.3:a:w3:amaya:11.1:*:*:*:*:*:*:*

References for CVE-2009-1209

cvelogic Threat Intelligence