CVE-2026-59310: Broadcom VMware vCenter Path Traversal Vulnerability

Patch now

CRITICAL 9.8EXPLOITEDREMOTEUPGRADE

CVE-2026-59310 is a critical-severity flaw (CVSS 9.8) affecting vcenter server, reported as exploited in the wild. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Critical severity
Exploited in the wild (CISA KEV)
Used in ransomware campaigns
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.6% (top 15%)
CISA exploited list	Yes, fix due 2026-08-21, used in ransomware
Weakness	CWE-22
Published	2026-07-30
Last modified	2026-08-19

Publisher (CNA): VMware · Vendor: vmware

Last updated 2026-08-19 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-30 13:16 UTCPublished CVE record published
2026-08-18Exploited Added to the CISA Known Exploited Vulnerabilities list
2026-08-19 04:17 UTCUpdated Record last modified
2026-08-21Deadline CISA due date for US federal agencies to patch

vmware vcenter server UPGRADE

Affected: < 8.0 · 8.0 · 8.0 a · 8.0 b · 8.0 c · 8.0 update1 · 8.0 update1a · 8.0 update1b

Fixed in: 8.0, 9.0.2.0100, 9.1.0.0300

Safe to downgrade to: a release before 8.0

1. Check installed version

apt-cache policy vcenter-server || rpm -q vcenter-server || vcenter-server --version

2. UPGRADE to 8.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade vcenter-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade vcenter-server

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 8.0 (Debian / Ubuntu)

apt-cache madison vcenter-server sudo apt install vcenter-server=<VERSION_BEFORE_8.0> sudo apt-mark hold vcenter-server

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list vcenter-server sudo dnf downgrade vcenter-server-<VERSION_BEFORE_8.0> sudo dnf versionlock add vcenter-server

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Exact fixes by distribution

Fedora ELN · rust-snpguest · FIXED · 0.11.0-1.eln159 · FEDORA-2026-baa01ba6c8 · source

sudo dnf upgrade --advisory=FEDORA-2026-baa01ba6c8

Fedora 46 · rust-sev · FIXED · 8.0.0-1.fc46 · FEDORA-2026-df06b5fb0c · source

sudo dnf upgrade --advisory=FEDORA-2026-df06b5fb0c

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

GitHub PoC: chu0119/vc-strike (15 stars)
GitHub PoC: zgsfsec/CVE-2026-59310-POC (8 stars)
GitHub PoC: BiuTrap/CVE-2026-59310 (2 stars)

Advisories and coverage

Official advisories

Google Cloud Security Bulletins: GCP-2026-050 2026-10-26

Verify at the official source NVD · CVE Program · CISA KEV catalog · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-59310?

vcenter server: upgrade to 8.0, 9.0.2.0100, 9.1.0.0300. Exact commands for each OS are on this page.

Is CVE-2026-59310 being exploited?

Yes. CVE-2026-59310 is on the CISA Known Exploited Vulnerabilities list, so treat it as patch-now.

What does CVE-2026-59310 affect?

CVE-2026-59310 affects vcenter server. Severity is critical (CVSS 9.8). 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 urgent is CVE-2026-59310?

Priority 99/100. Critical severity; Exploited in the wild (CISA KEV); Used in ransomware campaigns; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Software pages

VMware vulnerabilities

Related CVEs

CVE-2026-59309 CRITICAL 9.8 UPGRADE VMware vCenter contains an authentication bypass vulnerability in the VMware Directory Service. A malicious ac

References

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