What’s Vulnerable › Vulnerabilities

CVE-2021-33254

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-06-02 · updated 2026-06-17
• Weakness: CWE-476

Description

An issue was discovered in src/http/httpLib.c in EmbedThis Appweb Community Edition 8.2.1, allows attackers to cause a denial of service via the stream paramter to the parseUri function.

Affected products

• EmbedThis Appweb: 8.2.1

References

• https://awxylitol.github.io/2021/05/09/embedthis-appweb-npd-bug.html
• https://awxylitol.github.io/2021/05/09/embedthis-appweb-npd-bug.html

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