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CVE-2018-15128

32
FAUCET Score

CVE-2018-15128 is a critical remote code execution vulnerability affecting Polycom Group Series (6.1.6.1 and earlier), HDX (3.1.12 and earlier), and Pano (1.1.1 and earlier) devices. This buffer overflow vulnerability in the content sharing functionality can be exploited remotely via crafted network packets, requiring no user interaction. With a CVSS score of 9.8, successful exploitation grants full control over the affected system, leading to high impact on confidentiality, integrity, and availability. While no public exploits or active exploitation have been observed, and community discussion is minimal, the high severity warrants immediate patching.

Impacted Technologies

VendorProductVersion(s)CPE
<= 6.1.6.1CPE matchmatch criteria
cpe:2.3:a:polycom:group_series:*:*:*:*:*:*:*:*
<= 3.1.12CPE matchmatch criteria
cpe:2.3:a:polycom:hdx:*:*:*:*:*:*:*:*
<= 1.1.1CPE matchmatch criteria
cpe:2.3:a:polycom:pano:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
5.24%
Probability of exploitation in next 30 days
EPSS Percentile
91.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0524 is in the 86th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

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