Is CVE-2025-71436 being exploited?

No public exploit is currently tracked.

How severe is CVE-2025-71436?

CVE-2025-71436 has a CVSS v3 severity of HIGH (7.1).

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CVE-2025-71436

Description

Raptor RDF Syntax Library from 2.0.15 through 2.0.16 contains a heap-based buffer overflow vulnerability in raptor_new_term_from_counted_literal() caused by truncating language tag length to an unsigned char. Attackers can supply Turtle, TriG, N-Triples or N-Quads documents with language tags of 256 bytes or longer to corrupt heap memory, crash applications, and possibly execute code.