Open5gs
CVE-2026-1737
MEDIUM
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Lifecycle Timeline
3DescriptionCVE.org
A vulnerability was detected in Open5GS up to 2.7.6. The affected element is the function sgwc_s5c_handle_create_bearer_request of the file /src/sgwc/s5c-handler.c of the component CreateBearerRequest Handler. Performing a manipulation results in reachable assertion. Remote exploitation of the attack is possible. The exploit is now public and may be used. To fix this issue, it is recommended to deploy a patch. The issue report is flagged as already-fixed.
AnalysisAI
Open5GS versions up to 2.7.6 contain a reachable assertion vulnerability in the CreateBearerRequest handler that allows unauthenticated remote attackers to trigger a denial of service condition. Public exploit code exists for this vulnerability, and no patch is currently available. The impact is limited to service availability, with a CVSS score of 5.3.
Technical ContextAI
Classified as CWE-617 (Reachable Assertion). Affects Open5Gs. A vulnerability was detected in Open5GS up to 2.7.6. The affected element is the function sgwc_s5c_handle_create_bearer_request of the file /src/sgwc/s5c-handler.c of the component CreateBearerRequest Handler. Performing a manipulation results in reachable assertion. Remote exploitation of the attack is possible. The exploit is now public and may be used. To fix this issue, it is recommended to deploy a patch. The issue report is flagged as already-fixed.
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
Reachable assertion in Open5GS up to version 2.7.6 allows remote unauthenticated attackers to crash the Diameter CER han
Denial of service in Open5GS 2.7.6 and earlier allows network-adjacent attackers with low-privilege Diameter Gx peer acc
Denial of service in Open5GS HSS (Home Subscriber Server) versions 2.7.0 through 2.7.6 is triggered remotely by manipula
open5gs v2.6.4 is vulnerable to Buffer Overflow. Rated critical severity (CVSS 9.8), this vulnerability is remotely expl
Open5GS v2.6.4 is vulnerable to Buffer Overflow. Rated critical severity (CVSS 9.8), this vulnerability is remotely expl
A request-validation issue was discovered in Open5GS 2.1.3 through 2.2.x before 2.2.1. Rated critical severity (CVSS 9.8
Memory corruption in Open5GS versions through 2.7.1 is remotely exploitable via the freeDiameter protocol component, all
Open5GS 2.1.3 listens on 0.0.0.0:3000 and has a default password of 1423 for the admin account. Rated high severity (CVS
Open5GS MME versions <= 2.6.4 contain a reachable assertion in the `Uplink NAS Transport` packet handler. Rated high sev
Open5GS MME version <= 2.6.4 contains an assertion that can be remotely triggered via a malformed ASN.1 packet over the
Open5GS MME versions <= 2.6.4 contain an assertion that can be remotely triggered via a malformed ASN.1 packet over the
Open5GS MME versions <= 2.6.4 contains an assertion that can be remotely triggered via a malformed ASN.1 packet over the
Same weakness CWE-617 – Reachable Assertion
View allSame technique Denial Of Service
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External POC / Exploit Code
Leaving vuln.today