# CVE-2026-90999

Unauthenticated RCE via forged Sentry events executing code in privileged automation agents.

- Page: https://www.vulneraibility.com/cve/CVE-2026-90999
- CVSS: 9.8
- Known exploited: not in CISA KEV as of our last sync
- EPSS: 0.67% (percentile 52.0)
- CISA SSVC: exploitation none, automatable yes, technical impact total (assessed 2026-09-18)
- Weakness: CWE-20, CWE-74, CWE-116, CWE-94, CWE-913
- Published: 2026-09-16

## Affected versions

- Functional Software, Inc. Sentry Seer: affected Web site

A version outside these ranges is not a statement that it is unaffected.

## Impact

Unauthenticated attackers can submit fabricated Sentry events that execute attacker-controlled code in privileged automation agents, enabling remote code execution and full system takeover.

## Action

Immediate action required

## Recommendation

Isolate agents, block/validate external telemetry, apply vendor patch/mitigations when available

## References

- [other] https://kb.cert.org/vuls/id/212479
- [other] https://www.kb.cert.org/vuls/id/212479

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.