CVE-2025-29310Public exploit

Network disruption via malformed LLDP end TLV

Published Mar 24, 2025 · Updated Mar 26, 2025

Packet deserialization in ONOS 2.7.0 allows remote attackers to disrupt managed network state via a crafted LLDP packet. The LLDP processing path fails when the packet's end TLV is changed to 0200 or another TLV type, disrupting deserialization. An attacker-controlled host attached beneath a managed switch can force switch reconnection, flow-table reinstallation, and loss and rediscovery of host and topology state.

CVSS severity9.8
Critical
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Packet deserialization in ONOS 2.7.0 allows remote attackers to disrupt managed network state via a crafted LLDP packet. The LLDP processing path fails when the packet's end TLV is changed to 0200 or another TLV type, disrupting deserialization. An attacker-controlled host attached beneath a managed switch can force switch reconnection, flow-table reinstallation, and loss and rediscovery of host and topology state.

The record

CVE
CVE-2025-29310
Published
Mar 24, 2025
Updated
Mar 26, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-502, T1499.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 26, 2025Record 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 vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

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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