CVE Feed

    Dashboard / CVE / CVE-2026-1521

    CVE-2026-1521

    A security flaw has been discovered in Open5GS up to 2.7.6. This affects the function sgwc_s5c_handle_bearer_resource_failure_indication of the file src/sgwc/s5c-handler.c of the component SGWC. Performing a manipulation results in denial of service. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The patch is named 69b53add90a9479d7960b822fc60601d659c328b. It is recommended to apply a patch to fix this issue.

    Published:Jan 28, 2026
    Last Modified:Apr 18, 2026
    EPS:Jan 28, 2026
    EPSS Score:0.00097
    CVSS Score:5.3

    Affected Products

    Vendor
    Open5gs
    Product
    Open5gs

    Exploits

    https://github.com/open5gs/open5gs/issues/4268https://github.com/open5gs/open5gs/issues/4268#event-21989483261https://github.com/open5gs/open5gs/issues/4268#issue-3795012861https://vuldb.com/?submit.738370

    Related CVEs

    CVE-2026-86212 (CVSS 2.1) — A vulnerability has been found in Open5GS 2.7.7/2.8.0. This vulnerability affects unknown code of the componen…
    CVE-2026-75438 (CVSS 7.5) — Buffer Overflow vulnerability in Open5GS v2.7.7 allows a remote attacker to cause a denial of service via the …
    CVE-2026-82590 (CVSS 5.3) — A weakness has been identified in Open5GS up to 2.7.7. The affected element is the function smf_nudm_sdm_handl…
    CVE-2026-82589 (CVSS 2.1) — A security flaw has been discovered in Open5GS up to 2.7.7. Impacted is the function amf_namf_comm_handle_n1_n…
    CVE-2026-82588 (CVSS 5.3) — A vulnerability was identified in Open5GS up to 2.7.7. This issue affects some unknown processing of the file …
    CVE-2026-82587 (CVSS 2.1) — A vulnerability was determined in Open5GS up to 2.7.7. This vulnerability affects the function amf_namf_comm_d…
    CVE-2026-30046 (CVSS 7.5) — A reachable assertion vulnerability in the NUDM-UECM interface of Open5GS v2.7.6 allows attackers to cause a D…
    CVE-2026-30047 (CVSS 7.5) — A reachable assertion vulnerability in the /nsmf-pdusession/v1/sm-contexts component of Open5GS v2.7.6 allows …
    CVE-2026-30045 (CVSS 7.5) — An integer overflow in the /nnrf-disc/v1/nf-instances component of open5gs v2.7.6 allows attackers to cause a …
    CVE-2026-37198 (CVSS 7.5) — An integer overflow in the SMF component of Open5GS v2.7.6 allows attackers to cause a Denial of Service (DoS)…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High