CVE-2009-0323

Exp

Multiple stack-based buffer overflows in W3C Amaya Web Browser 10.0 and 11.0 allow remote attackers to execute arbitrary code via (1) a long type parameter in an input tag, which is not properly handled by the EndOfXmlAttributeValue function; (2) an "HTML GI" in a start tag, which is not properly handled by the ProcessStartGI function; and unspecified vectors in (3) html2thot.c and (4) xml2thot.c, related to the msgBuffer variable. NOTE: these are different vectors than CVE-2008-6005.

Published: 2009-01-28 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-0323 is rated High Exploit Risk (90.7/100): CVSS Critical severity, with high exploitation likelihood (EPSS 73.54%, 99th percentile). 3 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.09% over the last day, indicating growing attacker interest. 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-2009-0323

EDB-ID Source Kind Published Link
16548 exploit_db edb 2010-05-09 Exploit-DB ↗
7902 exploit_db edb 2009-01-28 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2009-0323

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 2026-01-23 72.46% 73.54% +1.09%
2 2025-10-16 69.82% 72.46% +2.64%
3 2025-05-13 — 69.82% —

Full EPSS history (18 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-0323

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 2.0 HIGH
AV:N/AC:L/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:L)
Exploitation conditions are straightforward and predictable.
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.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2009-0323

OS Trackers for CVE-2009-0323

vendor priority summary link
ubuntu medium CVE-2009-0323 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-2009-0323

Affected software / configurations for CVE-2009-0323

Vendor Product Version Raw CPE
w3 amaya <= 11.0 cpe:2.3:a:w3:amaya:*:*:*:*:*:*:*:*
w3 amaya 0.9 cpe:2.3:a:w3:amaya:0.9:*:*:*:*:*:*:*
w3 amaya 0.95b cpe:2.3:a:w3:amaya:0.95b:*:*:*:*:*:*:*
w3 amaya 1.0 cpe:2.3:a:w3:amaya:1.0:*:*:*:*:*:*:*
w3 amaya 1.0a cpe:2.3:a:w3:amaya:1.0a:*:*:*:*:*:*:*
w3 amaya 1.1 cpe:2.3:a:w3:amaya:1.1:*:*:*:*:*:*:*
w3 amaya 1.1a cpe:2.3:a:w3:amaya:1.1a:*:*:*:*:*:*:*
w3 amaya 1.1c cpe:2.3:a:w3:amaya:1.1c:*:*:*:*:*:*:*
w3 amaya 1.2 cpe:2.3:a:w3:amaya:1.2:*:*:*:*:*:*:*
w3 amaya 1.2a cpe:2.3:a:w3:amaya:1.2a:*:*:*:*:*:*:*
w3 amaya 1.3 cpe:2.3:a:w3:amaya:1.3:*:*:*:*:*:*:*
w3 amaya 1.3a cpe:2.3:a:w3:amaya:1.3a:*:*:*:*:*:*:*
w3 amaya 1.3b cpe:2.3:a:w3:amaya:1.3b:*:*:*:*:*:*:*
w3 amaya 1.4 cpe:2.3:a:w3:amaya:1.4:*:*:*:*:*:*:*
w3 amaya 1.4a cpe:2.3:a:w3:amaya:1.4a:*:*:*:*:*:*:*
w3 amaya 2.0 cpe:2.3:a:w3:amaya:2.0:*:*:*:*:*:*:*
w3 amaya 2.1 cpe:2.3:a:w3:amaya:2.1:*:*:*:*:*:*:*
w3 amaya 2.2 cpe:2.3:a:w3:amaya:2.2:*:*:*:*:*:*:*
w3 amaya 2.3 cpe:2.3:a:w3:amaya:2.3:*:*:*:*:*:*:*
w3 amaya 2.4 cpe:2.3:a:w3:amaya:2.4:*:*:*:*:*:*:*
w3 amaya 3.0 cpe:2.3:a:w3:amaya:3.0:*:*:*:*:*:*:*
w3 amaya 3.1 cpe:2.3:a:w3:amaya:3.1:*:*:*:*:*:*:*
w3 amaya 3.2 cpe:2.3:a:w3:amaya:3.2:*:*:*:*:*:*:*
w3 amaya 3.2.1 cpe:2.3:a:w3:amaya:3.2.1:*:*:*:*:*:*:*
w3 amaya 4.0 cpe:2.3:a:w3:amaya:4.0:*:*:*:*:*:*:*
w3 amaya 4.1 cpe:2.3:a:w3:amaya:4.1:*:*:*:*:*:*:*
w3 amaya 4.2 cpe:2.3:a:w3:amaya:4.2:*:*:*:*:*:*:*
w3 amaya 4.2.1 cpe:2.3:a:w3:amaya:4.2.1:*:*:*:*:*:*:*
w3 amaya 4.3 cpe:2.3:a:w3:amaya:4.3:*:*:*:*:*:*:*
w3 amaya 4.3.1 cpe:2.3:a:w3:amaya:4.3.1:*:*:*:*:*:*:*
w3 amaya 4.3.2 cpe:2.3:a:w3:amaya:4.3.2:*:*:*:*:*:*:*
w3 amaya 5.0 cpe:2.3:a:w3:amaya:5.0:*:*:*:*:*:*:*
w3 amaya 5.1 cpe:2.3:a:w3:amaya:5.1:*:*:*:*:*:*:*
w3 amaya 5.2 cpe:2.3:a:w3:amaya:5.2:*:*:*:*:*:*:*
w3 amaya 5.3 cpe:2.3:a:w3:amaya:5.3:*:*:*:*:*:*:*
w3 amaya 6.0 cpe:2.3:a:w3:amaya:6.0:*:*:*:*:*:*:*
w3 amaya 6.1 cpe:2.3:a:w3:amaya:6.1:*:*:*:*:*:*:*
w3 amaya 6.2 cpe:2.3:a:w3:amaya:6.2:*:*:*:*:*:*:*
w3 amaya 6.3 cpe:2.3:a:w3:amaya:6.3:*:*:*:*:*:*:*
w3 amaya 6.4 cpe:2.3:a:w3:amaya:6.4:*:*:*:*:*:*:*
w3 amaya 7.0 cpe:2.3:a:w3:amaya:7.0:*:*:*:*:*:*:*
w3 amaya 7.1 cpe:2.3:a:w3:amaya:7.1:*:*:*:*:*:*:*
w3 amaya 7.2 cpe:2.3:a:w3:amaya:7.2:*:*:*:*:*:*:*
w3 amaya 8.0 cpe:2.3:a:w3:amaya:8.0:*:*:*:*:*:*:*
w3 amaya 8.1 cpe:2.3:a:w3:amaya:8.1:*:*:*:*:*:*:*
w3 amaya 8.1a cpe:2.3:a:w3:amaya:8.1a:*:*:*:*:*:*:*
w3 amaya 8.1b cpe:2.3:a:w3:amaya:8.1b:*:*:*:*:*:*:*
w3 amaya 8.2 cpe:2.3:a:w3:amaya:8.2:*:*:*:*:*:*:*
w3 amaya 8.3 cpe:2.3:a:w3:amaya:8.3:*:*:*:*:*:*:*
w3 amaya 8.4 cpe:2.3:a:w3:amaya:8.4:*:*:*:*:*:*:*
w3 amaya 8.5 cpe:2.3:a:w3:amaya:8.5:*:*:*:*:*:*:*
w3 amaya 8.6 cpe:2.3:a:w3:amaya:8.6:*:*:*:*:*:*:*
w3 amaya 8.7 cpe:2.3:a:w3:amaya:8.7:*:*:*:*:*:*:*
w3 amaya 8.7.1 cpe:2.3:a:w3:amaya:8.7.1:*:*:*:*:*:*:*
w3 amaya 8.7.2 cpe:2.3:a:w3:amaya:8.7.2:*:*:*:*:*:*:*
w3 amaya 8.8.1 cpe:2.3:a:w3:amaya:8.8.1:*:*:*:*:*:*:*
w3 amaya 8.8.3 cpe:2.3:a:w3:amaya:8.8.3:*:*:*:*:*:*:*
w3 amaya 8.8.4 cpe:2.3:a:w3:amaya:8.8.4:*:*:*:*:*:*:*
w3 amaya 8.8.5 cpe:2.3:a:w3:amaya:8.8.5:*:*:*:*:*:*:*
w3 amaya 8.52 cpe:2.3:a:w3:amaya:8.52:*:*:*:*:*:*:*
w3 amaya 9.0 cpe:2.3:a:w3:amaya:9.0:*:*:*:*:*:*:*
w3 amaya 9.1 cpe:2.3:a:w3:amaya:9.1:*:*:*:*:*:*:*
w3 amaya 9.2.1 cpe:2.3:a:w3:amaya:9.2.1:*:*:*:*:*:*:*
w3 amaya 9.3 cpe:2.3:a:w3:amaya:9.3:*:*:*:*:*:*:*
w3 amaya 9.4 cpe:2.3:a:w3:amaya:9.4:*:*:*:*:*:*:*
w3 amaya 9.5 cpe:2.3:a:w3:amaya:9.5:*:*:*:*:*:*:*
w3 amaya 9.52 cpe:2.3:a:w3:amaya:9.52:*:*:*:*:*:*:*
w3 amaya 9.53 cpe:2.3:a:w3:amaya:9.53:*:*:*:*:*:*:*
w3 amaya 9.54 cpe:2.3:a:w3:amaya:9.54:*:*:*:*:*:*:*
w3 amaya 9.55 cpe:2.3:a:w3:amaya:9.55:*:*:*:*:*:*:*
w3 amaya 10.0 cpe:2.3:a:w3:amaya:10.0:*:*:*:*:*:*:*

References for CVE-2009-0323

cvelogic Threat Intelligence