CVE-2026-8248— Open5GS SMF npcf-handler.c update_authorized_pcc_rule_and_qos denial of service

CVSS 4.3 · Medium Updated May 11, 2026

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I. Basic Information for CVE-2026-8248

AIGC Shenlong Model
NVD (National Vulnerability Database)

Vulnerability Information

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Vulnerability Title

Open5GS SMF npcf-handler.c update_authorized_pcc_rule_and_qos denial of service

Source: NVD (National Vulnerability Database)

Vulnerability Description

A vulnerability was detected in Open5GS up to 2.7.7. The affected element is the function update_authorized_pcc_rule_and_qos of the file /src/smf/npcf-handler.c of the component SMF. The manipulation results in denial of service. The attack may be launched remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Source: NVD (National Vulnerability Database)

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Source: NVD (National Vulnerability Database)

Vulnerability Type

不恰当的资源关闭或释放

Source: NVD (National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
-	Open5GS	2.7.0	`cpe:2.3:a:open5gs:open5gs::::::::`

II. Public POCs for CVE-2026-8248

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III. Intelligence Information for CVE-2026-8248

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[Bug]: SMF crash on `POST /nsmf-callback/v1/sm-policy-notify/{smContextRef}/update` with invalid `arp.preemptCap` · Issue #4442 · open5gs/open5gsexploitissue-tracking
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CVE-2026-8248 | Open5GS up to 2.7.7 SMF /src/smf/npcf-handler.c update_authorized_pcc_rule_and_qos denial of service (Issue 4442)vdb-entrytechnical-description
https://nvd.nist.gov/vuln/detail/CVE-2026-8248

Same Patch Batch · n/a · 2026-05-10 · 10 CVEs total

CVE-2026-8226	5.3 MEDIUM	Open5GS types.c ogs_pcc_rule_install_flow_from_media denial of service
CVE-2026-8225	5.3 MEDIUM	Open5GS delete Endpoint sm-sm.c pcf_npcf_smpolicycontrol_handle_delete denial of service
CVE-2026-8224	5.3 MEDIUM	Open5GS PCF context.c pcf_sess_set_ipv6prefix denial of service
CVE-2026-8223	5.3 MEDIUM	Open5GS sm-policies Endpoint pcf_sess_sbi_discover_and_send denial of service
CVE-2026-8222	5.3 MEDIUM	Open5GS sm-policies Endpoint nbsf-handler.c pcf_nbsf_management_handle_register denial of
CVE-2026-8252	4.3 MEDIUM	Open5GS SMF smf_nsmf_handle_create_data_in_hsmf null pointer dereference
CVE-2026-8251	4.3 MEDIUM	Open5GS SMF npcf-handler.c update_authorized_pcc_rule_and_qos denial of service
CVE-2026-8250	4.3 MEDIUM	Open5GS SMF n4-build.c smf_n4_build_qos_flow_to_modify_list denial of service
CVE-2026-8249	4.3 MEDIUM	Open5GS SMF npcf-handler.c update_authorized_pcc_rule_and_qos denial of service

IV. Related Vulnerabilities

Same product: Open5GS

Same vendor: n/a

Same weakness: CWE-404

V. Comments for CVE-2026-8248

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CVE-2026-8248— Open5GS SMF npcf-handler.c update_authorized_pcc_rule_and_qos denial of service

I. Basic Information for CVE-2026-8248

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2026-8248

III. Intelligence Information for CVE-2026-8248

Same Patch Batch · n/a · 2026-05-10 · 10 CVEs total

IV. Related Vulnerabilities

V. Comments for CVE-2026-8248

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