How severe is CVE-2025-36099?

CVE-2025-36099 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-36099 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-36099?

CVE-2025-36099 primarily affects Ibm Websphere Application Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-36099?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-36099 have an EU (EUVD) identifier?

Yes. CVE-2025-36099 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-31604.

When was CVE-2025-36099 published?

CVE-2025-36099 was published on 2025-09-29 and last updated on 2026-06-17.

CVE-2025-36099

CVE-2025-36099 is a medium-severity vulnerability in Ibm Websphere Application Server with a CVSS 3.x base score of 4.9. 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-770.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-31604
Weakness: CWE-770
Affected product: Ibm Websphere Application Server
Published: 2025-09-29
Last modified: 2026-06-17

Description

IBM WebSphere Application Server 8.5 and 9.0 is vulnerable to a denial of service, caused by sending a specially-crafted request. A privileged user could exploit this vulnerability to cause the server to consume memory resources.

Frequently asked questions

What is CVE-2025-36099?: IBM WebSphere Application Server 8.5 and 9.0 is vulnerable to a denial of service, caused by sending a specially-crafted request. A privileged user could exploit this vulnerability to cause the server to consume memory resources.
How severe is CVE-2025-36099?: CVE-2025-36099 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-36099 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-36099?: CVE-2025-36099 primarily affects Ibm Websphere Application Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-36099?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-36099 have an EU (EUVD) identifier?: Yes. CVE-2025-36099 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-31604.
When was CVE-2025-36099 published?: CVE-2025-36099 was published on 2025-09-29 and last updated on 2026-06-17.

References

https://www.ibm.com/support/pages/node/7246549

Affected products (2)

cpe:2.3:a:ibm:websphere_application_server:8.5.0.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:9.0.0.0:*:*:*:*:*:*:*

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