How severe is CVE-2026-8850?

CVE-2026-8850 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-2026-8850 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-8850?

CVE-2026-8850 affects Ibm Http Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-8850?

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-2026-8850 have an EU (EUVD) identifier?

Yes. CVE-2026-8850 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31894.

When was CVE-2026-8850 published?

CVE-2026-8850 was published on 2026-05-26 and last updated on 2026-06-17.

CVE-2026-8850

CVE-2026-8850 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-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-31894
Weakness: CWE-476
Affected product: Ibm Http Server
Published: 2026-05-26
Last modified: 2026-06-17

Description

IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service via the optional module mod_ibm_upload.

Frequently asked questions

What is CVE-2026-8850?: IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service via the optional module mod_ibm_upload.
How severe is CVE-2026-8850?: CVE-2026-8850 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-2026-8850 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-8850?: CVE-2026-8850 affects Ibm Http Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-8850?: 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-2026-8850 have an EU (EUVD) identifier?: Yes. CVE-2026-8850 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31894.
When was CVE-2026-8850 published?: CVE-2026-8850 was published on 2026-05-26 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:ibm:http_server:*:*:*:*:*:*:*:*

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