State corruption via unchecked PFCP interface-name copy
Published Jun 18, 2025 · Updated Jan 9, 2026
Buffer overflow in Open5GS SMF and UPF 2.7.2 and earlier allows local users to corrupt daemon state through a crafted session.dev value. In ogs_pfcp_dev_add, strcpy copies the configuration value into the fixed-size dev->ifname buffer without checking its length. The attacker must be able to modify an affected network function's configuration; values longer than 32 bytes overwrite the adjacent fd field and can interrupt the daemon.
Summary
What happened
Buffer overflow in Open5GS SMF and UPF 2.7.2 and earlier allows local users to corrupt daemon state through a crafted session.dev value. In ogs_pfcp_dev_add, strcpy copies the configuration value into the fixed-size dev->ifname buffer without checking its length. The attacker must be able to modify an affected network function's configuration; values longer than 32 bytes overwrite the adjacent fd field and can interrupt the daemon.
The record
- CVE
- CVE-2025-44951
- Published
- Jun 18, 2025
- Updated
- Jan 9, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-120, T1499.004
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 18, 2025CVE publishedPublication date reported by the CVE source.
- Jan 9, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
- Open5GS PFCP configuration overflow proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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