CVE-2008-3529

Exp

Heap-based buffer overflow in the xmlParseAttValueComplex function in parser.c in libxml2 before 2.7.0 allows context-dependent attackers to cause a denial of service (crash) or execute arbitrary code via a long XML entity name.

Published: 2008-09-12 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2008-3529 is rated High Exploit Risk (87.1/100): CVSS Critical severity, with high exploitation likelihood (EPSS 56.63%, 98th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). 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-2008-3529

EDB-ID Source Kind Published Link
8798 exploit_db edb 2009-05-26 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2008-3529

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 2026-01-08 58.86% 56.63% -2.24%
2 2025-05-16 36.58% 58.86% +22.28%
3 2025-04-28 — 36.58% —

Full EPSS history (22 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2008-3529

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-2008-3529

OS Trackers for CVE-2008-3529

vendor priority summary link
debian not yet assigned CVE-2008-3529 not yet assigned priority: Debian including 1 source packages (libxml2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2008-3529
gentoo normal CVE-2008-3529: 1 GLSA(s) (200812-06), 1 atom(s) (dev-libs/libxml2); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2008-3529
redhat high — https://access.redhat.com/security/cve/CVE-2008-3529
ubuntu medium CVE-2008-3529 medium priority: Ubuntu including 1 source packages (libxml2), 5 status rows across 5 suites (dapper, feisty, gutsy, hardy, upstream): released 5. https://ubuntu.com/security/CVE-2008-3529

Affected software / configurations for CVE-2008-3529

Vendor Product Version Raw CPE
xmlsoft libxml2 < 2.7.0 cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*
debian debian_linux 4.0 cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:*
canonical ubuntu_linux 6.06 cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:*
canonical ubuntu_linux 6.06 cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:lts:*:*:*
canonical ubuntu_linux 7.04 cpe:2.3:o:canonical:ubuntu_linux:7.04:*:*:*:*:*:*:*
canonical ubuntu_linux 7.10 cpe:2.3:o:canonical:ubuntu_linux:7.10:*:*:*:*:*:*:*
canonical ubuntu_linux 8.04 cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:*
canonical ubuntu_linux 8.04 cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 8.10 cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:*
canonical ubuntu_linux 9.04 cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:*
apple safari < 4.0 cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
apple safari >= 3.2.0, < 3.2.3 cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
apple iphone_os < 3.0 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple mac_os_x < 10.5.7 cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
apple mac_os_x 10.5.7 cpe:2.3:o:apple:mac_os_x:10.5.7:*:*:*:*:*:*:*

References for CVE-2008-3529

URL Tags
http://lists.apple.com/archives/security-announce/2009/Jun/msg00005.html Mailing List Third Party Advisory
http://lists.apple.com/archives/security-announce/2009/May/msg00000.html Mailing List Third Party Advisory
http://lists.apple.com/archives/security-announce/2009/jun/msg00002.html Broken Link Mailing List
http://lists.opensuse.org/opensuse-security-announce/2008-09/msg00004.html Mailing List Third Party Advisory
http://secunia.com/advisories/31558 Third Party Advisory
http://secunia.com/advisories/31855 Third Party Advisory
http://secunia.com/advisories/31860 Third Party Advisory
http://secunia.com/advisories/31868 Third Party Advisory
http://secunia.com/advisories/31982 Third Party Advisory
http://secunia.com/advisories/32265 Third Party Advisory
http://secunia.com/advisories/32280 Third Party Advisory
http://secunia.com/advisories/32807 Third Party Advisory
http://secunia.com/advisories/32974 Third Party Advisory
http://secunia.com/advisories/33715 Third Party Advisory
http://secunia.com/advisories/33722 Third Party Advisory
http://secunia.com/advisories/35056 Third Party Advisory
http://secunia.com/advisories/35074 Third Party Advisory
http://secunia.com/advisories/35379 Third Party Advisory
http://secunia.com/advisories/36173 Third Party Advisory
http://secunia.com/advisories/36235 Third Party Advisory
http://security.gentoo.org/glsa/glsa-200812-06.xml Third Party Advisory
http://securitytracker.com/id?1020855 Third Party Advisory VDB Entry
http://sunsolve.sun.com/search/document.do?assetkey=1-21-126356-03-1 Broken Link
http://sunsolve.sun.com/search/document.do?assetkey=1-21-141243-01-1 Broken Link
http://sunsolve.sun.com/search/document.do?assetkey=1-26-247346-1 Broken Link
http://sunsolve.sun.com/search/document.do?assetkey=1-66-261688-1 Broken Link
http://sunsolve.sun.com/search/document.do?assetkey=1-66-265329-1 Broken Link
http://support.apple.com/kb/HT3549 Third Party Advisory
http://support.apple.com/kb/HT3550 Third Party Advisory
http://support.apple.com/kb/HT3613 Third Party Advisory
http://support.apple.com/kb/HT3639 Third Party Advisory
http://support.avaya.com/elmodocs2/security/ASA-2008-400.htm Third Party Advisory
http://support.avaya.com/elmodocs2/security/ASA-2009-025.htm Third Party Advisory
http://wiki.rpath.com/Advisories:rPSA-2008-0325 Broken Link
http://www.debian.org/security/2008/dsa-1654 Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2008:192 Broken Link
http://www.redhat.com/support/errata/RHSA-2008-0884.html Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2008-0886.html Third Party Advisory
http://www.securityfocus.com/bid/31126 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-815-1 Third Party Advisory
http://www.us-cert.gov/cas/techalerts/TA09-133A.html Third Party Advisory US Government Resource
http://www.vupen.com/english/advisories/2008/2822 Third Party Advisory
http://www.vupen.com/english/advisories/2009/1297 Third Party Advisory
http://www.vupen.com/english/advisories/2009/1298 Third Party Advisory
http://www.vupen.com/english/advisories/2009/1522 Third Party Advisory
http://www.vupen.com/english/advisories/2009/1621 Third Party Advisory
http://xmlsoft.org/news.html Release Notes Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=461015 Issue Tracking Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/45085 Third Party Advisory VDB Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11760 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6103 Third Party Advisory
https://usn.ubuntu.com/644-1/ Third Party Advisory
https://www.exploit-db.com/exploits/8798 Exploit Third Party Advisory VDB Entry
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