What’s Vulnerable › Vulnerabilities

CVE-2019-13503

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-07-11 · updated 2026-06-17
• Weakness: CWE-125

Description

mq_parse_http in mongoose.c in Mongoose 6.15 has a heap-based buffer over-read.

Affected products

• Cesanta Mongoose: 6.15

References

• https://fuzzit.dev/2019/07/11/discovering-cve-2019-13504-cve-2019-13503-and-the-importance-of-api-fuzzing/
• https://github.com/cesanta/mongoose/pull/1035
• https://fuzzit.dev/2019/07/11/discovering-cve-2019-13504-cve-2019-13503-and-the-importance-of-api-fuzzing/
• https://github.com/cesanta/mongoose/pull/1035

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