What’s Vulnerable › Vulnerabilities

CVE-2021-40511

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-06-21 · updated 2026-06-17
• Weakness: CWE-776

Description

OBDA systems’ Mastro 1.0 is vulnerable to XML Entity Expansion (aka “billion laughs”) attack allowing denial of service.

Affected products

• Obdasystems Mastro: 1.0

References

• https://www.cyberiskvision.com/advisory/
• https://www.obdasystems.com/mastro
• https://www.cyberiskvision.com/advisory/
• https://www.obdasystems.com/mastro

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