How severe is CVE-2026-56455?

CVE-2026-56455 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 none, and availability low.

Is CVE-2026-56455 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-56455?

CVE-2026-56455 affects Hcltech Dfxanalytics. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-56455?

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

When was CVE-2026-56455 published?

CVE-2026-56455 was published on 2026-07-16 and last updated on 2026-07-17.

CVE-2026-56455

CVE-2026-56455 is a medium-severity vulnerability in Hcltech Dfxanalytics 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-121.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-121
Affected product: Hcltech Dfxanalytics
Published: 2026-07-16
Last modified: 2026-07-17

Description

HCL DFXAnalytics is affected by a Buffer Overflow vulnerability that can lead to a Denial of Service (DoS). The application fails to properly validate input sizes, allowing an attacker to pass an excessive amount of information into a memory container, which can cause the system to crash or become unresponsive. To mitigate this flaw, comprehensive input length checks must be implemented and enforced on both the client and server sides.

Frequently asked questions

What is CVE-2026-56455?: HCL DFXAnalytics is affected by a Buffer Overflow vulnerability that can lead to a Denial of Service (DoS). The application fails to properly validate input sizes, allowing an attacker to pass an excessive amount of information into a memory container, which can cause the system to crash or become unresponsive. To mitigate this flaw, comprehensive input length checks must be implemented and enforced on both the client and server sides.
How severe is CVE-2026-56455?: CVE-2026-56455 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 none, and availability low.
Is CVE-2026-56455 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-56455?: CVE-2026-56455 affects Hcltech Dfxanalytics. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-56455?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-56455 published?: CVE-2026-56455 was published on 2026-07-16 and last updated on 2026-07-17.

References

https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0131787

Affected products (1)

cpe:2.3:a:hcltech:dfxanalytics:*:*:*:*:*:*:*:*

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