How severe is CVE-2019-10688?

CVE-2019-10688 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-10688 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-10688?

CVE-2019-10688 primarily affects Polycom Unified Communications Software. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-10688?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-10688 published?

CVE-2019-10688 was published on 2019-04-23 and last updated on 2026-06-17.

CVE-2019-10688

CVE-2019-10688 is a medium-severity vulnerability in Polycom Unified Communications Software with a CVSS 3.x base score of 6.8. 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-798.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Polycom Unified Communications Software
Published: 2019-04-23
Last modified: 2026-06-17

Description

VVX products with software versions including and prior to, UCS 5.9.2 with Better Together over Ethernet Connector (BToE) application 3.9.1, use hard-coded credentials to establish connections between the host application and the device.

Frequently asked questions

What is CVE-2019-10688?: VVX products with software versions including and prior to, UCS 5.9.2 with Better Together over Ethernet Connector (BToE) application 3.9.1, use hard-coded credentials to establish connections between the host application and the device.
How severe is CVE-2019-10688?: CVE-2019-10688 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-10688 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-10688?: CVE-2019-10688 primarily affects Polycom Unified Communications Software. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-10688?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-10688 published?: CVE-2019-10688 was published on 2019-04-23 and last updated on 2026-06-17.

References

https://support.polycom.com/content/dam/polycom-support/global/documentation/hard-coded-credentials-vulnerability-in-vvx-products.pdf

Affected products (2)

cpe:2.3:a:polycom:unified_communications_software:*:*:*:*:*:*:*:*
cpe:2.3:a:polycom:better_together_over_ethernet_connector:*:*:*:*:*:*:*:*

More vulnerabilities in Polycom Unified Communications Software

CVE-2017-12857 — High (CVSS 8.8): Polycom SoundStation IP, VVX, and RealPresence Trio that are running software older than UCS 4.0.12, 5.4.5 rev AG,…
CVE-2019-12948 — High (CVSS 8.3): A vulnerability in the web-based management interface of VVX, Trio, SoundStructure, SoundPoint, and SoundStation phones…
CVE-2019-10689 — Medium (CVSS 6.5): VVX products using UCS software version 5.9.2 and earlier with Better Together over Ethernet Connector (BToE)…
CVE-2018-18568 — Medium (CVSS 5.9): Polycom VVX 500 and 601 devices 5.8.0.12848 and earlier allows man-in-the-middle attackers to obtain sensitive…
CVE-2018-18566 — Medium (CVSS 5.3): The SIP service in Polycom VVX 500 and 601 devices 5.8.0.12848 and earlier allow remote attackers to obtain sensitive…

All CVEs affecting Polycom Unified Communications Software →

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