AWebServer GhostBuilding 18 - Denial of Service (DoS)
Priority HIGH 77CWE-770Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-770.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00584 48th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Sylkat-Tools | AWebServer GhostBuilding | AWebServer GhostBuilding 18 | — | No fix listed | CNA |
- AWebServer GhostBuilding VendorSylkat-Tools Affected AWebServer GhostBuilding 18 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:sylkat-tools:awebserver:18:*:*:*:*:*:*:* | 18 | Vulnerable | Sylkat-Tools |
- cpe:2.3:a:sylkat-tools:awebserver:18:*:*:*:*:*:*:* Versions 18 Vulnerable ·Sylkat-Tools
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-47752
- 2026-10-03 Alias added: GHSA-hw2r-j4x3-h8j6
References
Exploit 1
Sources
- CVE-2021-47752 · CVE Program
- CVE-2021-47752 · NVD
- FIRST EPSS
- GHSA-hw2r-j4x3-h8j6 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences