How severe is CVE-2018-6970?

CVE-2018-6970 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-6970 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-2018-6970?

CVE-2018-6970 primarily affects Vmware Horizon Client. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-6970?

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

When was CVE-2018-6970 published?

CVE-2018-6970 was published on 2018-08-13 and last updated on 2026-06-17.

CVE-2018-6970

CVE-2018-6970 is a medium-severity vulnerability in Vmware Horizon Client with a CVSS 3.x base score of 6.5. 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-125.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Vmware Horizon Client
Published: 2018-08-13
Last modified: 2026-06-17

Description

VMware Horizon 6 (6.x.x before 6.2.7), Horizon 7 (7.x.x before 7.5.1), and Horizon Client (4.x.x and prior before 4.8.1) contain an out-of-bounds read vulnerability in the Message Framework library. Successfully exploiting this issue may allow a less-privileged user to leak information from a privileged process running on a system where Horizon Connection Server, Horizon Agent or Horizon Client are installed. Note: This issue doesn't apply to Horizon 6, 7 Agents installed on Linux systems or Horizon Clients installed on non-Windows systems.

Frequently asked questions

What is CVE-2018-6970?: VMware Horizon 6 (6.x.x before 6.2.7), Horizon 7 (7.x.x before 7.5.1), and Horizon Client (4.x.x and prior before 4.8.1) contain an out-of-bounds read vulnerability in the Message Framework library. Successfully exploiting this issue may allow a less-privileged user to leak information from a privileged process running on a system where Horizon Connection Server, Horizon Agent or Horizon Client are installed. Note: This issue doesn't apply to Horizon 6, 7 Agents installed on Linux systems or Horizon Clients installed on non-Windows systems.
How severe is CVE-2018-6970?: CVE-2018-6970 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-6970 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-2018-6970?: CVE-2018-6970 primarily affects Vmware Horizon Client. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-6970?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-6970 published?: CVE-2018-6970 was published on 2018-08-13 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:vmware:horizon_client:*:*:*:*:*:*:*:*
cpe:2.3:a:vmware:horizon_view:*:*:*:*:*:*:*:*

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