How severe is CVE-2026-18531?

CVE-2026-18531 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-18531 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-18531?

CVE-2026-18531 primarily affects Ibm Maximo Application Suite. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-18531?

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

When was CVE-2026-18531 published?

CVE-2026-18531 was published on 2026-08-05 and last updated on 2026-08-10.

CVE-2026-18531

CVE-2026-18531 is a medium-severity vulnerability in Ibm Maximo Application Suite with a CVSS 3.x base score of 5.3. 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-330.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-330
Affected product: Ibm Maximo Application Suite
Published: 2026-08-05
Last modified: 2026-08-10

Description

IBM Maximo Application Suite 9.2, 9.1, and 9.0 could allow a remote attacker to tamper with session data due to the use of a weak HMAC session signing secret.

Frequently asked questions

What is CVE-2026-18531?: IBM Maximo Application Suite 9.2, 9.1, and 9.0 could allow a remote attacker to tamper with session data due to the use of a weak HMAC session signing secret.
How severe is CVE-2026-18531?: CVE-2026-18531 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-18531 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-18531?: CVE-2026-18531 primarily affects Ibm Maximo Application Suite. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-18531?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-18531 published?: CVE-2026-18531 was published on 2026-08-05 and last updated on 2026-08-10.

References

https://www.ibm.com/support/pages/node/7282362

Affected products (2)

cpe:2.3:a:ibm:maximo_application_suite:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:maximo_application_suite:9.2:*:*:*:*:*:*:*

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