How severe is CVE-2023-34037?

CVE-2023-34037 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2023-34037 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-34037?

CVE-2023-34037 primarily affects Vmware Horizon Client. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-34037?

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

When was CVE-2023-34037 published?

CVE-2023-34037 was published on 2023-08-04 and last updated on 2026-06-17.

CVE-2023-34037

CVE-2023-34037 is a medium-severity vulnerability in Vmware Horizon Client with a CVSS 3.x base score of 5.3. 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-444.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-444
Affected product: Vmware Horizon Client
Published: 2023-08-04
Last modified: 2026-06-17

Description

VMware Horizon Server contains a HTTP request smuggling vulnerability. A malicious actor with network access may be able to perform HTTP smuggle requests.

Frequently asked questions

What is CVE-2023-34037?: VMware Horizon Server contains a HTTP request smuggling vulnerability. A malicious actor with network access may be able to perform HTTP smuggle requests.
How severe is CVE-2023-34037?: CVE-2023-34037 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2023-34037 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-34037?: CVE-2023-34037 primarily affects Vmware Horizon Client. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-34037?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-34037 published?: CVE-2023-34037 was published on 2023-08-04 and last updated on 2026-06-17.

References

https://www.vmware.com/security/advisories/VMSA-2023-0017.html

Affected products (8)

cpe:2.3:a:vmware:horizon_client:2006:*:*:*:*:*:*:*
cpe:2.3:a:vmware:horizon_client:2012:*:*:*:*:*:*:*
cpe:2.3:a:vmware:horizon_client:2103:*:*:*:*:*:*:*
cpe:2.3:a:vmware:horizon_client:2106:*:*:*:*:*:*:*
cpe:2.3:a:vmware:horizon_client:2111:*:*:*:*:*:*:*
cpe:2.3:a:vmware:horizon_client:2111.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:horizon_client:2203:*:*:*:*:*:*:*
cpe:2.3:a:vmware:horizon_client:2212:*:*:*:*:*:*:*

More vulnerabilities in Vmware Horizon Client

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