How severe is CVE-2018-1000537?

CVE-2018-1000537 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-1000537 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1000537?

CVE-2018-1000537 affects Marlinfw Marlin Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-1000537?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2018-1000537 published?

CVE-2018-1000537 was published on 2018-06-26 and last updated on 2026-06-17.

CVE-2018-1000537

CVE-2018-1000537 is a critical-severity vulnerability in Marlinfw Marlin Firmware with a CVSS 3.x base score of 9.8. 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-119.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Marlinfw Marlin Firmware
Published: 2018-06-26
Last modified: 2026-06-17

Description

Marlin Firmware Marlin version 1.1.x and earlier contains a Buffer Overflow vulnerability in cardreader.cpp (Depending on branch/version) that can result in Arbitrary code execution. This attack appear to be exploitable via Crafted G-Code instruction/file is sent to the printer.

Frequently asked questions

What is CVE-2018-1000537?: Marlin Firmware Marlin version 1.1.x and earlier contains a Buffer Overflow vulnerability in cardreader.cpp (Depending on branch/version) that can result in Arbitrary code execution. This attack appear to be exploitable via Crafted G-Code instruction/file is sent to the printer.
How severe is CVE-2018-1000537?: CVE-2018-1000537 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-1000537 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1000537?: CVE-2018-1000537 affects Marlinfw Marlin Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-1000537?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-1000537 published?: CVE-2018-1000537 was published on 2018-06-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:marlinfw:marlin_firmware:*:*:*:*:*:*:*:*

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