CVE-2024-34046Network attack vector

Service crash via RICSubscription counter increment

Published Apr 29, 2024 · Updated Aug 24, 2026

Denial of service in O-RAN-SC E2T allows remote attackers to crash E2T with a crafted RICSubscriptionResponse. In sctpThread.cpp, the response path invokes Increment on the RICSubscription success counter through the peerInfo and sctpParams object chain, where the call triggers a segmentation fault. A malicious RAN node can reach this path during a subscription exchange, and the E2T crash interrupts communications for every RAN connected to the same RIC.

CVSS severity7.5
High
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in O-RAN-SC E2T allows remote attackers to crash E2T with a crafted RICSubscriptionResponse. In sctpThread.cpp, the response path invokes Increment on the RICSubscription success counter through the peerInfo and sctpParams object chain, where the call triggers a segmentation fault. A malicious RAN node can reach this path during a subscription exchange, and the E2T crash interrupts communications for every RAN connected to the same RIC.

The record

CVE
CVE-2024-34046
Published
Apr 29, 2024
Updated
Aug 24, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-770, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 24, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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