How severe is CVE-2021-37499?

CVE-2021-37499 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2021-37499 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-37499?

CVE-2021-37499 affects Reprisesoftware Reprise License Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-37499?

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

When was CVE-2021-37499 published?

CVE-2021-37499 was published on 2023-01-20 and last updated on 2026-07-09.

CVE-2021-37499

CVE-2021-37499 is a medium-severity vulnerability in Reprisesoftware Reprise License Manager 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-74.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-74
Affected product: Reprisesoftware Reprise License Manager
Published: 2023-01-20
Last modified: 2026-07-09

Description

CRLF vulnerability in Reprise License Manager (RLM) web interface through 14.2BL4 in the password parameter in View License Result function, that allows remote attackers to inject arbitrary HTTP headers.

Frequently asked questions

What is CVE-2021-37499?: CRLF vulnerability in Reprise License Manager (RLM) web interface through 14.2BL4 in the password parameter in View License Result function, that allows remote attackers to inject arbitrary HTTP headers.
How severe is CVE-2021-37499?: CVE-2021-37499 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2021-37499 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-37499?: CVE-2021-37499 affects Reprisesoftware Reprise License Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-37499?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-37499 published?: CVE-2021-37499 was published on 2023-01-20 and last updated on 2026-07-09.

References

https://github.com/blakduk/Advisories/blob/main/Reprise%20License%20Manager/README.md

Affected products (1)

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

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