CVE-2021-4433
Karjasoft Sami HTTP Server HTTP HEAD Rrequest denial of service
A vulnerability was found in Karjasoft Sami HTTP Server 2.0. It has been classified as problematic. Affected is an unknown function of the component HTTP HEAD Rrequest Handler. The manipulation leads to denial of service. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-250836.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Karjasoft Sami HTTP Server HTTP HEAD Rrequest denial of service
A vulnerability was found in Karjasoft Sami HTTP Server 2.0. It has been classified as problematic. Affected is an unknown function of the component HTTP HEAD Rrequest Handler. The manipulation leads to denial of service. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-250836.
- Record
CVE-2021-4433- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - CVSS 2.0
- 5.0
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-404
- Updated
- 2026-11-02
EUVDEUVD-2021-34260
A vulnerability was found in Karjasoft Sami HTTP Server 2.0. It has been classified as problematic. Affected is an unknown function of the component HTTP HEAD Rrequest Handler. The manipulation leads to denial of service. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-250836.
- Record
EUVD-2021-34260- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-22mf-f3cc-mh6f
A vulnerability was found in Karjasoft Sami HTTP Server 2.0. It has been classified as...
A vulnerability was found in Karjasoft Sami HTTP Server 2.0. It has been classified as problematic. Affected is an unknown function of the component HTTP HEAD Rrequest Handler. The manipulation leads to denial of service. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-250836.
- Record
GHSA-22mf-f3cc-mh6f- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-404
- Updated
- 2026-11-02
NVD
A vulnerability was found in Karjasoft Sami HTTP Server 2.0. It has been classified as problematic. Affected is an unknown function of the component HTTP HEAD Rrequest Handler. The manipulation leads to denial of service. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-250836.
- Record
CVE-2021-4433- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-404
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-4433 is a medium vulnerability (CVSS 5.3) in Karjasoft Sami Http Server, published January 18, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.26%, the 69th percentile. No source names a fixed version.