CVE-2026-8251 (GCVE-0-2026-8251)
Vulnerability from cvelistv5 – Published: 2026-05-10 23:00 – Updated: 2026-05-11 17:31
VLAI
EPSS
VEX
Title
Open5GS SMF npcf-handler.c update_authorized_pcc_rule_and_qos denial of service
Summary
A vulnerability was found in Open5GS up to 2.7.7. This impacts the function update_authorized_pcc_rule_and_qos of the file /src/smf/npcf-handler.c of the component SMF. Performing a manipulation results in denial of service. The attack is possible to be carried out remotely. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-404 - Denial of Service
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/362548 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/362548/cti | signaturepermissions-required |
| https://vuldb.com/submit/808480 | third-party-advisory |
| https://github.com/open5gs/open5gs/issues/4445 | exploitissue-tracking |
| https://github.com/open5gs/open5gs/ | product |
Impacted products
Credits
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"source": "Red Hat CSAF VEX",
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"title": "Open5GS SMF npcf-handler.c update_authorized_pcc_rule_and_qos denial of service",
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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