CVE-2008-3529

CVE-2008-3529 is a critical-severity vulnerability in Xmlsoft Libxml2 with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 23% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Description

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.

Frequently asked questions

What is CVE-2008-3529?
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.
How severe is CVE-2008-3529?
CVE-2008-3529 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2008-3529 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 23% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-3529?
CVE-2008-3529 primarily affects Xmlsoft Libxml2. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-3529?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2008-3529 published?
CVE-2008-3529 was published on 2008-09-12 and last updated on 2026-06-16.

References

Affected products (14)

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