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CVE-2026-32999

9.0
Critical
EPSS 0.31%May 28, 2026

Privilege escalation via input filtering flaw in backup agent signing.

common questions

Is CVE-2026-32999 being exploited?

Not confirmed. CVE-2026-32999 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.31% probability of exploitation in the next 30 days.

How severe is CVE-2026-32999?

CVE-2026-32999 is rated Critical with a CVSS score of 9.0. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2026-32999?

Not known from our data. No patch reference has been recorded for CVE-2026-32999, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.

What does CVE-2026-32999 affect?

CVE-2026-32999 affects Comet Backup Server, Comet Backup Agent. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

What should I do about CVE-2026-32999?

Patch when available; restrict tenant admin privileges.

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary
technical analysis
affected
Comet Backup ServerComet Backup Agent
impact

Authenticated tenant admin can execute arbitrary code as a privileged user on the server and connected devices.

action required

Immediate action required

affected versions
WebPros Comet Backup
  • affected< 26.4.3
  • affected< 26.5.0

As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.

how to fix
Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.
references
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