How severe is CVE-2021-4311?

CVE-2021-4311 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2021-4311 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-4311?

CVE-2021-4311 affects Talend Open Studio. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-4311?

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

When was CVE-2021-4311 published?

CVE-2021-4311 was published on 2023-01-09 and last updated on 2026-06-17.

CVE-2021-4311

CVE-2021-4311 is a medium-severity vulnerability in Talend Open Studio with a CVSS 3.x base score of 5.5. 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-611.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.9
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Talend Open Studio
Published: 2023-01-09
Last modified: 2026-06-17

Description

A vulnerability classified as problematic was found in Talend Open Studio for MDM. This vulnerability affects unknown code of the component XML Handler. The manipulation leads to xml external entity reference. The patch is identified as 31d442b9fb1d518128fd18f6e4d54e06c3d67793. It is recommended to apply a patch to fix this issue. VDB-217666 is the identifier assigned to this vulnerability.

Frequently asked questions

What is CVE-2021-4311?: A vulnerability classified as problematic was found in Talend Open Studio for MDM. This vulnerability affects unknown code of the component XML Handler. The manipulation leads to xml external entity reference. The patch is identified as 31d442b9fb1d518128fd18f6e4d54e06c3d67793. It is recommended to apply a patch to fix this issue. VDB-217666 is the identifier assigned to this vulnerability.
How severe is CVE-2021-4311?: CVE-2021-4311 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2021-4311 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-4311?: CVE-2021-4311 affects Talend Open Studio. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-4311?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-4311 published?: CVE-2021-4311 was published on 2023-01-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:talend:open_studio:*:*:*:*:*:mdm:*:*

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