How severe is CVE-2020-13919?

CVE-2020-13919 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-2020-13919 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-13919?

CVE-2020-13919 affects Ruckuswireless Unleashed Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-13919?

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-2020-13919 published?

CVE-2020-13919 was published on 2020-07-28 and last updated on 2026-06-17.

CVE-2020-13919

CVE-2020-13919 is a critical-severity vulnerability in Ruckuswireless Unleashed 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-77.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-77
Affected product: Ruckuswireless Unleashed Firmware
Published: 2020-07-28
Last modified: 2026-06-17

Description

emfd/libemf in Ruckus Wireless Unleashed through 200.7.10.102.92 allows a remote attacker to achieve command injection via a crafted HTTP request. This affects C110, E510, H320, H510, M510, R320, R310, R500, R510 R600, R610, R710, R720, R750, T300, T301n, T301s, T310c, T310d, T310n, T310s, T610, T710, and T710s devices.

Frequently asked questions

What is CVE-2020-13919?: emfd/libemf in Ruckus Wireless Unleashed through 200.7.10.102.92 allows a remote attacker to achieve command injection via a crafted HTTP request. This affects C110, E510, H320, H510, M510, R320, R310, R500, R510 R600, R610, R710, R720, R750, T300, T301n, T301s, T310c, T310d, T310n, T310s, T610, T710, and T710s devices.
How severe is CVE-2020-13919?: CVE-2020-13919 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-2020-13919 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-13919?: CVE-2020-13919 affects Ruckuswireless Unleashed Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-13919?: 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-2020-13919 published?: CVE-2020-13919 was published on 2020-07-28 and last updated on 2026-06-17.

References

https://support.ruckuswireless.com/security_bulletins/304

Affected products (1)

cpe:2.3:o:ruckuswireless:unleashed_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Ruckuswireless Unleashed Firmware

CVE-2020-13917 — Critical (CVSS 9.8): rkscli in Ruckus Wireless Unleashed through 200.7.10.92 allows a remote attacker to achieve command injection and…
CVE-2020-13916 — Critical (CVSS 9.8): A stack buffer overflow in webs in Ruckus Wireless Unleashed through 200.7.10.102.92 allows a remote attacker to…
CVE-2017-6224 — High (CVSS 8.8): Ruckus Wireless Zone Director Controller firmware releases ZD9.x, ZD10.0.0.x, ZD10.0.1.x (less than 10.0.1.0.17 MR1…
CVE-2020-13918 — High (CVSS 7.5): Incorrect access control in webs in Ruckus Wireless Unleashed through 200.7.10.102.92 allows a remote attacker to leak…
CVE-2020-13915 — High (CVSS 7.5): Insecure permissions in emfd/libemf in Ruckus Wireless Unleashed through 200.7.10.102.92 allow a remote attacker to…
CVE-2020-13914 — High (CVSS 7.5): webs in Ruckus Wireless Unleashed through 200.7.10.102.92 allows a remote attacker to cause a denial of service…

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