How severe is CVE-2020-12737?

CVE-2020-12737 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-12737 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-12737?

CVE-2020-12737 affects Maxum Rumpus. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-12737?

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

When was CVE-2020-12737 published?

CVE-2020-12737 was published on 2020-05-08 and last updated on 2026-06-17.

CVE-2020-12737

CVE-2020-12737 is a medium-severity vulnerability in Maxum Rumpus 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-22.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Maxum Rumpus
Published: 2020-05-08
Last modified: 2026-06-17

Description

An issue was discovered in Maxum Rumpus before 8.2.12 on macOS. Authenticated users can perform a path traversal using double escaped characters, enabling read access to arbitrary files on the server.

Frequently asked questions

What is CVE-2020-12737?: An issue was discovered in Maxum Rumpus before 8.2.12 on macOS. Authenticated users can perform a path traversal using double escaped characters, enabling read access to arbitrary files on the server.
How severe is CVE-2020-12737?: CVE-2020-12737 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-12737 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-12737?: CVE-2020-12737 affects Maxum Rumpus. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-12737?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-12737 published?: CVE-2020-12737 was published on 2020-05-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:maxum:rumpus:*:*:*:*:*:macos:*:*

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