CVE-2025-8805
Published: 10 August 2025
Summary
CVE-2025-8805 is a medium-severity Improper Resource Shutdown or Release (CWE-404) vulnerability in Open5Gs Open5Gs. Its CVSS base score is 5.5 (Medium).
Operationally, ranked in the top 19.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
A vulnerability exists in Open5GS versions up to 2.7.5 within the SMF component, specifically in the function smf_gsm_state_wait_pfcp_deletion located in src/smf/gsm-sm.c. The flaw, categorized under CWE-404, arises from improper resource handling that can be triggered through manipulation of the affected function, resulting in a denial of service condition. The CVSS 4.0 score of 5.5 reflects a network-accessible vector with low attack complexity and no required privileges or user interaction.
An unauthenticated remote attacker can exploit the issue to cause service disruption in the SMF. Publicly available exploit details indicate that the attack may be launched against exposed instances, with the potential to affect availability while leaving confidentiality and integrity intact.
The vendor addresses the vulnerability by upgrading to Open5GS 2.7.6, which incorporates the patch commit c58b8f081986aaf2a312d73a0a17985518b47fe6. The associated GitHub release and issue references confirm that applying this update resolves the denial-of-service condition in the SMF state handling logic. The EPSS score has remained flat at 0.0139 with no material increase since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-24087
Vulnerability details
A vulnerability was determined in Open5GS up to 2.7.5. Affected by this issue is the function smf_gsm_state_wait_pfcp_deletion of the file src/smf/gsm-sm.c of the component SMF. The manipulation leads to denial of service. The attack may be launched remotely. The exploit…
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has been disclosed to the public and may be used. Upgrading to version 2.7.6 is able to address this issue. The patch is identified as c58b8f081986aaf2a312d73a0a17985518b47fe6. It is recommended to upgrade the affected component.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Contingency plan updates incorporate proper resource shutdown and release steps, preventing attackers from leveraging incomplete cleanup during recovery scenarios.
Mandates explicit shutdown of the network connection at session conclusion, directly addressing improper resource release.
Requires proper shutdown/release procedures that include overwriting or isolating data to block unintended transfer via reused system objects.
Procedures can mandate orderly shutdown or release of resources when failures occur, preventing improper resource handling after a fault.