How severe is CVE-2018-15128?

CVE-2018-15128 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-2018-15128 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-15128?

CVE-2018-15128 primarily affects Polycom Group Series. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-15128?

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-2018-15128 published?

CVE-2018-15128 was published on 2019-05-13 and last updated on 2026-06-17.

CVE-2018-15128

CVE-2018-15128 is a critical-severity vulnerability in Polycom Group Series 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-119.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Polycom Group Series
Published: 2019-05-13
Last modified: 2026-06-17

Description

An issue was discovered in Polycom Group Series 6.1.6.1 and earlier, HDX 3.1.12 and earlier, and Pano 1.1.1 and earlier. A remote code execution vulnerability exists in the content sharing functionality because of a Buffer Overflow via crafted packets.

Frequently asked questions

What is CVE-2018-15128?: An issue was discovered in Polycom Group Series 6.1.6.1 and earlier, HDX 3.1.12 and earlier, and Pano 1.1.1 and earlier. A remote code execution vulnerability exists in the content sharing functionality because of a Buffer Overflow via crafted packets.
How severe is CVE-2018-15128?: CVE-2018-15128 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-2018-15128 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-15128?: CVE-2018-15128 primarily affects Polycom Group Series. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-15128?: 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-2018-15128 published?: CVE-2018-15128 was published on 2019-05-13 and last updated on 2026-06-17.

References

https://support.polycom.com/content/dam/polycom-support/global/documentation/remote-code-exectuion-vulnerability-group-series.pdf

Affected products (3)

cpe:2.3:a:polycom:group_series:*:*:*:*:*:*:*:*
cpe:2.3:a:polycom:hdx:*:*:*:*:*:*:*:*
cpe:2.3:a:polycom:pano:*:*:*:*:*:*:*:*

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