CVE-2026-44475

UE security-capability corruption via unchecked PathSwitchRequest

Published May 27, 2026 · Updated May 27, 2026

Improper protocol validation in Ella Core before 1.10.0 allows attackers to corrupt stored UE security capabilities via a crafted PathSwitchRequest. The NGAP PathSwitchRequest handler accepts the message's UE Security Capabilities without comparing them with locally stored values, then overwrites those values. Reachability requires control of a gNB connected over the N2 interface; one request can corrupt the stored capabilities for any target UE.

CVSS severity6.1
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper protocol validation in Ella Core before 1.10.0 allows attackers to corrupt stored UE security capabilities via a crafted PathSwitchRequest. The NGAP PathSwitchRequest handler accepts the message's UE Security Capabilities without comparing them with locally stored values, then overwrites those values. Reachability requires control of a gNB connected over the N2 interface; one request can corrupt the stored capabilities for any target UE.

The record

CVE
CVE-2026-44475
Published
May 27, 2026
Updated
May 27, 2026
Vendor
Ella Networks
Product
Ella Core
Classifications
CWE-358
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.10.0

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Ella Networks · Ella Coreversion=< 1.10.0

Published CVSS scores

6.1GitHubCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-358Improperly Implemented Security Check for Standard

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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