How severe is CVE-2023-37497?

CVE-2023-37497 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-37497 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-37497?

CVE-2023-37497 affects Hcltech Unica. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-37497?

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.

When was CVE-2023-37497 published?

CVE-2023-37497 was published on 2023-08-03 and last updated on 2026-06-17.

CVE-2023-37497

CVE-2023-37497 is a high-severity vulnerability in Hcltech Unica with a CVSS 3.x base score of 8.1. 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-611.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Hcltech Unica
Published: 2023-08-03
Last modified: 2026-06-17

Description

The Unica application exposes an API which accepts arbitrary XML input. By manipulating the given XML, an authenticated attacker with certain rights can successfully perform XML External Entity attacks (XXE) against the backend service.

Frequently asked questions

What is CVE-2023-37497?: The Unica application exposes an API which accepts arbitrary XML input. By manipulating the given XML, an authenticated attacker with certain rights can successfully perform XML External Entity attacks (XXE) against the backend service.
How severe is CVE-2023-37497?: CVE-2023-37497 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-37497 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-37497?: CVE-2023-37497 affects Hcltech Unica. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-37497?: 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.
When was CVE-2023-37497 published?: CVE-2023-37497 was published on 2023-08-03 and last updated on 2026-06-17.

References

https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0106547

Affected products (1)

cpe:2.3:a:hcltech:unica:*:*:*:*:*:*:*:*

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Other CWE-611 (Improper Restriction of XML External Entity Reference (XXE)) vulnerabilities

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CVE-2018-1000838 — Critical (CVSS 10.0): autopsy version <= 4.9.0 contains a XML External Entity (XXE) vulnerability in CaseMetadata XML Parser that can result…
CVE-2018-1000837 — Critical (CVSS 10.0): UML Designer version <= 8.0.0 contains a XML External Entity (XXE) vulnerability in XML parser for plugins that can…
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