CVE-2026-72522
A local attacker can exploit a vulnerability in expat to conduct a denial of service attack.
CSIRTS triage
- What
- A vulnerability in expat allows local attackers to conduct denial of service attacks.
- Who is affected
- Systems running expat that allow local attacker access.
- Urgency
- Medium—local attack only; denial of service risk.
- Action
- Update expat to a patched version.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all EPSS-scored CVEs.
Advisory coverage (4)
- medium[NEW] [medium] expat: Vulnerability enables denial of servicecert-bund · 2026-08-18
- highDSA-6446-1 expat - security updatedebian · 2026-08-18
- mediumCVE-2026-72522: libexpat before 2.8.3 has an out-of-bounds read and resultant infinite loop because low surrog…msrc · 2026-08-11
- mediumCVE-2026-72522: libexpat before 2.8.3 has an out-of-bounds read and resultant infinite loop because low surrog…nvd · 2026-08-10
External references
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