CVE-2021-33254

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.

CVSS v3.1

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0

5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS

1.52% chance of exploitation in the next 30 days, 73th percentile

Published

2022-06-01

Updated

2024-08-03

Proof-of-concept exploits (1)

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

References

• CVE Record
• NVD entry

Related

• CVE-2021-3325
• CVE-2021-33256
• CVE-2021-33221
• CVE-2021-33259
• CVE-2021-33216
• CVE-2021-33265