How severe is CVE-2026-59310?

CVE-2026-59310 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-2026-59310 being actively exploited?

Yes. CVE-2026-59310 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2026-08-18, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2026-59310?

CVE-2026-59310 primarily affects Vmware Vcenter Server. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-59310?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

When was CVE-2026-59310 published?

CVE-2026-59310 was published on 2026-07-30 and last updated on 2026-08-19.

CVE-2026-59310

CVE-2026-59310 is a critical-severity vulnerability in Vmware Vcenter Server with a CVSS 3.x base score of 9.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2026-08-18). The underlying weakness is classified as CWE-22.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 2% (83rd percentile)
Actively exploited: Yes — listed in CISA KEV (added 2026-08-18)
Weakness: CWE-22
Affected product: Vmware Vcenter Server
Published: 2026-07-30
Last modified: 2026-08-19

Description

VMware vCenter contains a directory traversal vulnerability in the Syslog server. A malicious actor with network access to vCenter may exploit this issue to execute arbitrary code.

Frequently asked questions

What is CVE-2026-59310?: VMware vCenter contains a directory traversal vulnerability in the Syslog server. A malicious actor with network access to vCenter may exploit this issue to execute arbitrary code.
How severe is CVE-2026-59310?: CVE-2026-59310 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-2026-59310 being actively exploited?: Yes. CVE-2026-59310 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2026-08-18, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2026-59310?: CVE-2026-59310 primarily affects Vmware Vcenter Server. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-59310?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
When was CVE-2026-59310 published?: CVE-2026-59310 was published on 2026-07-30 and last updated on 2026-08-19.

References

Affected products (27)

cpe:2.3:a:vmware:vcenter_server:*:*:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:-:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:a:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:b:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:c:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:update1:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:update1a:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:update1b:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:update1c:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:update1d:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:update1e:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:update2:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:update2a:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:update2b:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:update2c:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:update2d:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:update2e:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:update3:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:update3a:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:update3b:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:update3c:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:update3d:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:update3e:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:update3g:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:update3h:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:update3i:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:8.0:update3j:*:*:*:*:*:*

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