VulnerabilityModified
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.
HIGH 7.5EPSS 1.52%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.52%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.52% probability · 73th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- embedthis/appweb
- Source
- cve@mitre.org
References
- https://awxylitol.github.io/2021/05/09/embedthis-appweb-npd-bug.htmlExploit, Patch, Third Party Advisory
- https://awxylitol.github.io/2021/05/09/embedthis-appweb-npd-bug.htmlExploit, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.