CVE-2006-10003
XML::Parser versions through 2.47 for Perl has an off-by-one heap buffer overflow in st_serial_stack.
In the case (stackptr == stacksize - 1), the stack will NOT be expanded. Then the new value will be written at location (++stackptr), which equals stacksize and therefore falls just outside the allocated buffer.
The bug can be observed when parsing an XML file with very deep element nesting
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 9.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.55%
- Percentil entre todas las CVEs puntuadas: 44
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1190Exploit Public-Facing Applicationinitial access85 % - Impacto principal
T1059Command and Scripting Interpreterexecution80 % - Impacto secundario
T1068Exploitation for Privilege Escalationprivilege escalation75 %
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N indica red sin autenticación; CWE-122 (buffer overflow) en parser XML expone aplicación. Desbordamiento de heap permite ejecución de código remota o escalada de privilegios.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
CWE
- CWE-122, CWE-193
- CWE-193
Referencias
- https://github.com/cpan-authors/XML-Parser/commit/3eb9cc95420fa0c3f76947c4708962546bf27cfd.patch
- https://github.com/cpan-authors/XML-Parser/issues/39
- https://rt.cpan.org/Ticket/Display.html?id=19860
- http://www.openwall.com/lists/oss-security/2026/03/19/2
- https://lists.debian.org/debian-lts-announce/2026/04/msg00002.html
- https://access.redhat.com/errata/RHSA-2026:7679
- https://access.redhat.com/errata/RHSA-2026:7680
- https://access.redhat.com/errata/RHSA-2026:7681
- https://access.redhat.com/errata/RHSA-2026:8577
- https://access.redhat.com/errata/RHSA-2026:8578
- https://access.redhat.com/errata/RHSA-2026:8608
- https://access.redhat.com/errata/RHSA-2026:8609
- https://access.redhat.com/errata/RHSA-2026:8610
- https://access.redhat.com/errata/RHSA-2026:9110
- https://access.redhat.com/errata/RHSA-2026:9246
- https://access.redhat.com/errata/RHSA-2026:9258
- https://access.redhat.com/errata/RHSA-2026:9259
- https://access.redhat.com/errata/RHSA-2026:9605
- https://access.redhat.com/security/cve/CVE-2006-10003
- https://bugzilla.redhat.com/show_bug.cgi?id=2448999
- https://security.access.redhat.com/data/csaf/v2/vex/2006/cve-2006-10003.json
JSON original (NVD)
Mostrar
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