How severe is CVE-2020-14171?

CVE-2020-14171 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2020-14171 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-2020-14171?

CVE-2020-14171 affects Atlassian Bitbucket. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-14171?

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

When was CVE-2020-14171 published?

CVE-2020-14171 was published on 2020-07-09 and last updated on 2026-06-17.

CVE-2020-14171

CVE-2020-14171 is a medium-severity vulnerability in Atlassian Bitbucket 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-319.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 5.8
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-319
Affected product: Atlassian Bitbucket
Published: 2020-07-09
Last modified: 2026-06-17

Description

Atlassian Bitbucket Server from version 4.9.0 before version 7.2.4 allows remote attackers to intercept unencrypted repository import requests via a Man-in-the-Middle (MITM) attack.

Frequently asked questions

What is CVE-2020-14171?: Atlassian Bitbucket Server from version 4.9.0 before version 7.2.4 allows remote attackers to intercept unencrypted repository import requests via a Man-in-the-Middle (MITM) attack.
How severe is CVE-2020-14171?: CVE-2020-14171 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2020-14171 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-2020-14171?: CVE-2020-14171 affects Atlassian Bitbucket. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-14171?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-14171 published?: CVE-2020-14171 was published on 2020-07-09 and last updated on 2026-06-17.

References

https://jira.atlassian.com/browse/BSERV-12434

Affected products (1)

cpe:2.3:a:atlassian:bitbucket:*:*:*:*:*:*:*:*

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