How severe is CVE-2020-4085?

CVE-2020-4085 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-4085 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-4085?

CVE-2020-4085 primarily affects Hcltech Connections. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-4085?

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

When was CVE-2020-4085 published?

CVE-2020-4085 was published on 2020-04-22 and last updated on 2026-06-17.

CVE-2020-4085

CVE-2020-4085 is a medium-severity vulnerability in Hcltech Connections with a CVSS 3.x base score of 6.5. 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-209.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-209
Affected product: Hcltech Connections
Published: 2020-04-22
Last modified: 2026-06-17

Description

"HCL Connections is vulnerable to possible information leakage and could disclose sensitive information via stack trace to a local user."

Frequently asked questions

What is CVE-2020-4085?: "HCL Connections is vulnerable to possible information leakage and could disclose sensitive information via stack trace to a local user."
How severe is CVE-2020-4085?: CVE-2020-4085 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-4085 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-4085?: CVE-2020-4085 primarily affects Hcltech Connections. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-4085?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-4085 published?: CVE-2020-4085 was published on 2020-04-22 and last updated on 2026-06-17.

References

https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0077976

Affected products (3)

cpe:2.3:a:hcltech:connections:5.5:*:*:*:*:*:*:*
cpe:2.3:a:hcltech:connections:6.0:*:*:*:*:*:*:*
cpe:2.3:a:hcltech:connections:6.5:*:*:*:*:*:*:*

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