High 7.5Published Jan 15, 2026

CVE-2021-47752AWebServer GhostBuilding 18 - Denial of Service (DoS)

Updated under an hour ago (Oct 26, 2026, 2:25 AM ET)

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It affects Sylkat-Tools AWebServer GhostBuilding and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Sylkat-Tools AWebServer GhostBuilding

Exploited in the last 30 days

AWebServer GhostBuilding 18 contains a denial of service vulnerability that allows remote attackers to overwhelm the server by sending multiple concurrent HTTP requests. Attackers can generate high-volume requests to multiple endpoints including /mysqladmin to potentially crash or render the service unresponsive.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-770
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Analyzed
Record last updated: Apr 7, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Sylkat-Tools AWebServer GhostBuilding sylkat_tools:awebserver_ghostbuilding (from the name)	AWebServer GhostBuilding 18	CNA record
sylkat-tools awebserver sylkat-tools:awebserver	18	NVD

References

https://www.exploit-db.com/exploits/50629exploit
http://sylkat-tools.rf.gd/awebserver.htmproduct
https://play.google.com/store/apps/details?id=com.sylkat.apache&hl=enproduct

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.