How severe is CVE-2026-18163?

CVE-2026-18163 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-18163 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-18163?

CVE-2026-18163 primarily affects Ibm Financial Transaction Manager. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-18163?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2026-18163 published?

CVE-2026-18163 was published on 2026-09-22 and last updated on 2026-10-06.

CVE-2026-18163

CVE-2026-18163 is a critical-severity vulnerability in Ibm Financial Transaction Manager with a CVSS 3.x base score of 9.8. 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-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Ibm Financial Transaction Manager
Published: 2026-09-22
Last modified: 2026-10-06

Description

IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote attacker to execute arbitrary code due to improper deserialization of untrusted data.

Frequently asked questions

What is CVE-2026-18163?: IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote attacker to execute arbitrary code due to improper deserialization of untrusted data.
How severe is CVE-2026-18163?: CVE-2026-18163 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-18163 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-18163?: CVE-2026-18163 primarily affects Ibm Financial Transaction Manager. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-18163?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2026-18163 published?: CVE-2026-18163 was published on 2026-09-22 and last updated on 2026-10-06.

References

https://www.ibm.com/support/pages/node/7288641

Affected products (8)

cpe:2.3:a:ibm:financial_transaction_manager:*:*:*:*:*:-:*:*
cpe:2.3:a:ibm:financial_transaction_manager:4.0.6.0:-:*:*:*:-:*:*
cpe:2.3:a:ibm:financial_transaction_manager:4.0.6.0:interim_fix_1:*:*:*:-:*:*
cpe:2.3:a:ibm:financial_transaction_manager:4.0.6.0:interim_fix_2:*:*:*:-:*:*
cpe:2.3:a:ibm:financial_transaction_manager:4.0.6.0:interim_fix_3:*:*:*:-:*:*
cpe:2.3:a:ibm:financial_transaction_manager:4.0.6.0:interim_fix_4:*:*:*:-:*:*
cpe:2.3:a:ibm:financial_transaction_manager:4.0.6.0:interim_fix_5:*:*:*:-:*:*
cpe:2.3:a:ibm:financial_transaction_manager:4.0.6.0:interim_fix_6:*:*:*:-:*:*

More vulnerabilities in Ibm Financial Transaction Manager

CVE-2026-18169 — Critical (CVSS 9.9): IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote authenticated attacker to obtain…
CVE-2026-18162 — Critical (CVSS 9.8): IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote attacker to execute arbitrary code…
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CVE-2019-4032 — Critical (CVSS 9.8): IBM Financial Transaction Manager for Digital Payments for Multi-Platform 3.1.0 is vulnerable to SQL injection. A…
CVE-2020-5003 — Critical (CVSS 9.1): IBM Financial Transaction Manager 3.2.4 is vulnerable to an XML External Entity Injection (XXE) attack when processing…
CVE-2021-39066 — High (CVSS 8.8): IBM Financial Transaction Manager 3.2.4 does not invalidate session any existing session identifier gives an attacker…

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