CVE-2026-8728: Denial of Service in Open5GS
CVE-2026-8728 is a medium severity denial of service vulnerability in Open5GS versions up to 2.7.7. It affects the NRF component, specifically the function ogs_sbi_discovery_option_parse_plmn_list in the /lib/sbi/conv.c library. The vulnerability arises from manipulation of the target-plmn-list argument, which can be exploited remotely to cause a denial of service. The issue has been publicly disclosed and the project has not yet responded with a fix or mitigation guidance.
AI Analysis
Technical Summary
This vulnerability in Open5GS affects the NRF component's function ogs_sbi_discovery_option_parse_plmn_list, where improper handling of the target-plmn-list argument can lead to denial of service. The flaw exists in versions 2.7.0 through 2.7.7. The attack vector is remote network access, requiring low attack complexity and no privileges or user interaction. The CVSS 4.0 base score is 5.3, indicating medium severity. No official patch or remediation has been published by the vendor as of the latest information.
Potential Impact
Successful exploitation results in denial of service of the NRF component in Open5GS, potentially disrupting network function related to 5G core network discovery services. The vulnerability can be triggered remotely without authentication, which could impact availability of affected systems. There is no evidence of exploitation in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded or released a fix, users should monitor official Open5GS channels for updates. In the meantime, consider restricting network access to the NRF component to trusted sources to reduce exposure.
CVE-2026-8728: Denial of Service in Open5GS
Description
CVE-2026-8728 is a medium severity denial of service vulnerability in Open5GS versions up to 2.7.7. It affects the NRF component, specifically the function ogs_sbi_discovery_option_parse_plmn_list in the /lib/sbi/conv.c library. The vulnerability arises from manipulation of the target-plmn-list argument, which can be exploited remotely to cause a denial of service. The issue has been publicly disclosed and the project has not yet responded with a fix or mitigation guidance.
CVSS v4.0
Score 5.3medium
Affected software
pkg:github/open5gs/open5gsRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Open5GS affects the NRF component's function ogs_sbi_discovery_option_parse_plmn_list, where improper handling of the target-plmn-list argument can lead to denial of service. The flaw exists in versions 2.7.0 through 2.7.7. The attack vector is remote network access, requiring low attack complexity and no privileges or user interaction. The CVSS 4.0 base score is 5.3, indicating medium severity. No official patch or remediation has been published by the vendor as of the latest information.
Potential Impact
Successful exploitation results in denial of service of the NRF component in Open5GS, potentially disrupting network function related to 5G core network discovery services. The vulnerability can be triggered remotely without authentication, which could impact availability of affected systems. There is no evidence of exploitation in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded or released a fix, users should monitor official Open5GS channels for updates. In the meantime, consider restricting network access to the NRF component to trusted sources to reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-05-16T10:08:49.784Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a0984efec166c07b0b13d61
Added to database: 05/17/2026, 09:05:51 UTC
Last enriched: 05/24/2026, 19:28:50 UTC
Last updated: 07/24/2026, 11:56:43 UTC
Views: 91
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