How severe is CVE-2021-44155?

CVE-2021-44155 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-2021-44155 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-44155?

CVE-2021-44155 affects Reprisesoftware Reprise License Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-44155?

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

When was CVE-2021-44155 published?

CVE-2021-44155 was published on 2021-12-13 and last updated on 2026-06-17.

CVE-2021-44155

CVE-2021-44155 is a medium-severity vulnerability in Reprisesoftware Reprise License Manager 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-209.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-209
Affected product: Reprisesoftware Reprise License Manager
Published: 2021-12-13
Last modified: 2026-06-17

Description

An issue was discovered in /goform/login_process in Reprise RLM 14.2. When an attacker attempts to login, the response if a username is valid includes Login Failed, but does not include this string if the username is invalid. This allows an attacker to enumerate valid users.

Frequently asked questions

What is CVE-2021-44155?: An issue was discovered in /goform/login_process in Reprise RLM 14.2. When an attacker attempts to login, the response if a username is valid includes Login Failed, but does not include this string if the username is invalid. This allows an attacker to enumerate valid users.
How severe is CVE-2021-44155?: CVE-2021-44155 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-2021-44155 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-44155?: CVE-2021-44155 affects Reprisesoftware Reprise License Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-44155?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-44155 published?: CVE-2021-44155 was published on 2021-12-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:reprisesoftware:reprise_license_manager:*:*:*:*:*:*:*:*

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