CVE-2026-8854
CVE-2026-8854 is a high-severity vulnerability in Ibm Http Server with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-825.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 0% (28th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-31904
- Weakness: CWE-825
- Affected product: Ibm Http Server
- Published:
- Last modified:
Description
IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service via the optional module mod_mem_cache.
Frequently asked questions
- What is CVE-2026-8854?
- IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service via the optional module mod_mem_cache.
- How severe is CVE-2026-8854?
- CVE-2026-8854 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2026-8854 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-8854?
- CVE-2026-8854 affects Ibm Http Server. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-8854?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-8854 have an EU (EUVD) identifier?
- Yes. CVE-2026-8854 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31904.
- When was CVE-2026-8854 published?
- CVE-2026-8854 was published on 2026-05-26 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:ibm:http_server:*:*:*:*:*:*:*:*
More vulnerabilities in Ibm Http Server
- CVE-2012-5955 — Critical (CVSS 10.0): Unspecified vulnerability in the IBM HTTP Server component 5.3 in IBM WebSphere Application Server (WAS) for z/OS…
- CVE-2010-0425 — Critical (CVSS 10.0): modules/arch/win32/mod_isapi.c in mod_isapi in the Apache HTTP Server 2.0.37 through 2.0.63, 2.2.0 through 2.2.14, and…
- CVE-2004-0492 — Critical (CVSS 10.0): Heap-based buffer overflow in proxy_util.c for mod_proxy in Apache 1.3.25 to 1.3.31 allows remote attackers to cause a…
- CVE-2026-9170 — Critical (CVSS 9.8): IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service and a potential remote code execution due to improper…
- CVE-2015-4947 — Critical (CVSS 9.0): Stack-based buffer overflow in the Administration Server in IBM HTTP Server 6.1.0.x through 6.1.0.47, 7.0.0.x before…
- CVE-2026-8855 — High (CVSS 8.1): IBM HTTP Server 8.5, and 9.0 is vulnerable to remote code execution and denial of service in configurations with TLS…
All CVEs affecting Ibm Http Server →
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