CVE-2026-8856 — HIGH (7.7) — White Hats Nepal

Q: What is CVE-2026-8856?

CVE-2026-8856 is a vulnerability with a CVSS score of 7.7 (HIGH). IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service in configurations where an attacker has write access to parts of the server configuration.

Q: How severe is CVE-2026-8856?

CVE-2026-8856 has been rated HIGH with a CVSS base score of 7.7/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-8856?

Check the references section above for vendor advisories and patch information. Affected products include: Ibm Http Server, Ibm Aix, Ibm Z\/Os, Linux Linux Kernel, Microsoft Windows.

Vulnerability Description

IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service in configurations where an attacker has write access to parts of the server configuration.

CVSS Score

7.7

HIGH

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Ibm	Http Server	>= 8.5.0.0, < 8.5.5.30
Ibm	Aix	-
Ibm	Z\/Os	-
Linux	Linux Kernel	-
Microsoft	Windows	-

Related Weaknesses (CWE)

CWE-400

References

https://www.ibm.com/support/pages/node/7274065Vendor Advisory

FAQ

What is CVE-2026-8856?

CVE-2026-8856 is a vulnerability with a CVSS score of 7.7 (HIGH). IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service in configurations where an attacker has write access to parts of the server configuration.

How severe is CVE-2026-8856?

CVE-2026-8856 has been rated HIGH with a CVSS base score of 7.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-8856?

Check the references section above for vendor advisories and patch information. Affected products include: Ibm Http Server, Ibm Aix, Ibm Z\/Os, Linux Linux Kernel, Microsoft Windows.