How severe is CVE-2020-9495?

CVE-2020-9495 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 low, integrity none, and availability none.

Is CVE-2020-9495 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-9495?

CVE-2020-9495 affects Apache Archiva. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-9495?

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

When was CVE-2020-9495 published?

CVE-2020-9495 was published on 2020-06-19 and last updated on 2026-06-17.

CVE-2020-9495

CVE-2020-9495 is a medium-severity vulnerability in Apache Archiva 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-74.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-74
Affected product: Apache Archiva
Published: 2020-06-19
Last modified: 2026-06-17

Description

Apache Archiva login service before 2.2.5 is vulnerable to LDAP injection. A attacker is able to retrieve user attribute data from the connected LDAP server by providing special values to the login form. With certain characters it is possible to modify the LDAP filter used to query the LDAP users. By measuring the response time for the login request, arbitrary attribute data can be retrieved from LDAP user objects.

Frequently asked questions

What is CVE-2020-9495?: Apache Archiva login service before 2.2.5 is vulnerable to LDAP injection. A attacker is able to retrieve user attribute data from the connected LDAP server by providing special values to the login form. With certain characters it is possible to modify the LDAP filter used to query the LDAP users. By measuring the response time for the login request, arbitrary attribute data can be retrieved from LDAP user objects.
How severe is CVE-2020-9495?: CVE-2020-9495 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 low, integrity none, and availability none.
Is CVE-2020-9495 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-9495?: CVE-2020-9495 affects Apache Archiva. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-9495?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-9495 published?: CVE-2020-9495 was published on 2020-06-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:archiva:*:*:*:*:*:*:*:*

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