How severe is CVE-2018-11316?

CVE-2018-11316 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-11316 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-11316?

CVE-2018-11316 affects Sonos Sonos Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-11316?

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-2018-11316 published?

CVE-2018-11316 was published on 2018-07-03 and last updated on 2026-06-17.

CVE-2018-11316

CVE-2018-11316 is a critical-severity vulnerability in Sonos Sonos Firmware with a CVSS 3.x base score of 9.6. 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-20.

Key facts

Severity: Critical (CVSS 3.x base score 9.6)
CVSS v2: 9.3
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Sonos Sonos Firmware
Published: 2018-07-03
Last modified: 2026-06-17

Description

The UPnP HTTP server on Sonos wireless speaker products allow unauthorized access via a DNS rebinding attack. This can result in remote device control and privileged device and network information to be exfiltrated by an attacker.

Frequently asked questions

What is CVE-2018-11316?: The UPnP HTTP server on Sonos wireless speaker products allow unauthorized access via a DNS rebinding attack. This can result in remote device control and privileged device and network information to be exfiltrated by an attacker.
How severe is CVE-2018-11316?: CVE-2018-11316 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-11316 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-11316?: CVE-2018-11316 affects Sonos Sonos Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-11316?: 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-2018-11316 published?: CVE-2018-11316 was published on 2018-07-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:sonos:sonos_firmware:-:*:*:*:*:*:*:*

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