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CVE-2026-110491: The ONVIF service on the E3 can be rendered unresponsive by sending malformed or incomplete requests to certai

39
Routine
HIGH 7.5REMOTE

CVE-2026-110491 is a high-severity flaw (CVSS 7.5) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The ONVIF service on the E3 can be rendered unresponsive by sending malformed or incomplete requests to certain operations. The affected service stops accepting new connections while the rest of the device continues operating normally, and will recover automatically after a period. This can be triggered repeatedly by any unauthenticated party with network access to the device.

Why this priority

  • High severity
  • Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score7.5 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance0.4% (top 69%)
CISA exploited listNo
WeaknessCWE-476
Published2026-10-22
Last modified2026-10-23
Publisher (CNA): ICS-CERT

Timeline

Advisories and coverage

Official advisories

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Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

References

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