How severe is CVE-2018-15137?

CVE-2018-15137 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-2018-15137 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 18% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-15137?

CVE-2018-15137 affects Cela Link Clr-m20 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-15137?

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-2018-15137 published?

CVE-2018-15137 was published on 2018-08-08 and last updated on 2026-06-17.

CVE-2018-15137

CVE-2018-15137 is a critical-severity vulnerability in Cela Link Clr-m20 Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 18% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 18% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Cela Link Clr-m20 Firmware
Published: 2018-08-08
Last modified: 2026-06-17

Description

CeLa Link CLR-M20 devices allow unauthorized users to upload any file (e.g., asp, aspx, cfm, html, jhtml, jsp, or shtml), which causes remote code execution as well. Because of the WebDAV feature, it is possible to upload arbitrary files by utilizing the PUT method.

Frequently asked questions

What is CVE-2018-15137?: CeLa Link CLR-M20 devices allow unauthorized users to upload any file (e.g., asp, aspx, cfm, html, jhtml, jsp, or shtml), which causes remote code execution as well. Because of the WebDAV feature, it is possible to upload arbitrary files by utilizing the PUT method.
How severe is CVE-2018-15137?: CVE-2018-15137 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-2018-15137 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 18% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-15137?: CVE-2018-15137 affects Cela Link Clr-m20 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-15137?: 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-2018-15137 published?: CVE-2018-15137 was published on 2018-08-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:cela_link:clr-m20_firmware:2.7.1.6:*:*:*:*:*:*:*

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