CVE-2018-15721
CVE-2018-15721 is a critical-severity vulnerability in Logitech Harmony Hub 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-287.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 2% (76th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-287
- Affected product: Logitech Harmony Hub Firmware
- Published:
- Last modified:
Description
The XMPP server in Logitech Harmony Hub before version 4.15.206 is vulnerable to authentication bypass via a crafted XMPP request. Remote attackers can use this vulnerability to gain access to the local API.
Frequently asked questions
- What is CVE-2018-15721?
- The XMPP server in Logitech Harmony Hub before version 4.15.206 is vulnerable to authentication bypass via a crafted XMPP request. Remote attackers can use this vulnerability to gain access to the local API.
- How severe is CVE-2018-15721?
- CVE-2018-15721 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-2018-15721 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-15721?
- CVE-2018-15721 affects Logitech Harmony Hub Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-15721?
- 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-2018-15721 published?
- CVE-2018-15721 was published on 2018-12-20 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:logitech:harmony_hub_firmware:*:*:*:*:*:*:*:*
More vulnerabilities in Logitech Harmony Hub Firmware
- CVE-2018-15723 — Critical (CVSS 9.8): The Logitech Harmony Hub before version 4.15.206 is vulnerable to application level command injection via crafted HTTP…
- CVE-2018-15720 — Critical (CVSS 9.8): Logitech Harmony Hub before version 4.15.206 contained two hard-coded accounts in the XMPP server that gave remote…
- CVE-2018-15722 — High (CVSS 8.1): The Logitech Harmony Hub before version 4.15.206 is vulnerable to OS command injection via the time update request. A…
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- CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
- CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
- CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…
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