by Kastro
Paper/Archive/CVE-2026-90999

CVE-2026-90999

Functional Software, Inc. Sentry Seer — Sentry Seer vulnerability allows attacker-controlled input to be executed in a privileged environment

EPSS 0.7%CVSS 9.8
critical.is priorityof 100
40
CVSS 9.8 (ADP)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 52.0.520 × 2010.4No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Sentry Seer is vulnerable to a multi-stage trust-boundary violation that allows unauthenticated attacker-controlled telemetry to become code that is executed by an agent in a privileged automation environment. An external attacker can submit fabricated Sentry events without having access to the victim’s Sentry account, source repository, or infrastructure.

Affected

ProductAffectedFixed inSource
Sentry SeerWeb site–CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refkb.cert.org/vuls/id/212479refkb.cert.org/vuls/id/212479