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CVE-2026-7601

A vulnerability has been found in Open5GS up to 2.7.6. Affected is an unknown function of the file src/amf/gmm-handler.c of the component AMF. The manipulation of the argument reg_type leads to denial of service. The attack is possible to be carried out remotely. Upgrading to version 2.7.7 is able to address this issue. The identifier of the patch is ebc66942b6f8f1fab2d640e71cf4e9f1a423b426. It is advisable to upgrade the affected component.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:069313105a7cf5da5e90acea9b3b5b6298f31a620a63f279016561e75929aa81
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 4 assertions

{"metric":{"baseScore":4.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:55059a898793964b98f150da4b3befe1f078a743839224568c00640d96fa8e79 · sha256:9cb4b99a7b89fc53… · /containers/cna/metrics/2/cvssV3_0

{"metric":{"baseScore":4,"vectorString":"AV:N/AC:L/Au:S/C:N/I:N/A:P/E:ND/RL:OF/RC:C","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:55059a898793964b98f150da4b3befe1f078a743839224568c00640d96fa8e79 · sha256:9cb4b99a7b89fc53… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":4.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:55059a898793964b98f150da4b3befe1f078a743839224568c00640d96fa8e79 · sha256:9cb4b99a7b89fc53… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:55059a898793964b98f150da4b3befe1f078a743839224568c00640d96fa8e79 · sha256:9cb4b99a7b89fc53… · /containers/cna/metrics/0/cvssV4_0

Affected products and versions

1 source assertion
{"cpes":["cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*"],"modules":["AMF"],"product":"Open5GS","vendor":"n/a","versions":[{"status":"affected","version":"2.7.0"},{"status":"affected","version":"2.7.1"},{"status":"affected","version":"2.7.2"},{"status":"affected","version":"2.7.3"},{"status":"affected","version":"2.7.4"},{"status":"affected","version":"2.7.5"},{"status":"affected","version":"2.7.6"},{"status":"unaffected","version":"2.7.7"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:55059a898793964b98f150da4b3befe1f078a743839224568c00640d96fa8e79 · sha256:9cb4b99a7b89fc53… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":4.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:55059a898793964b98f150da4b3befe1f078a743839224568c00640d96fa8e79 · sha256:9cb4b99a7b89fc53… · /containers/cna/metrics/2/cvssV3_0
{"metric":{"baseScore":4,"vectorString":"AV:N/AC:L/Au:S/C:N/I:N/A:P/E:ND/RL:OF/RC:C","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:55059a898793964b98f150da4b3befe1f078a743839224568c00640d96fa8e79 · sha256:9cb4b99a7b89fc53… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":4.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:55059a898793964b98f150da4b3befe1f078a743839224568c00640d96fa8e79 · sha256:9cb4b99a7b89fc53… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:55059a898793964b98f150da4b3befe1f078a743839224568c00640d96fa8e79 · sha256:9cb4b99a7b89fc53… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-404","description":"Denial of Service","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:55059a898793964b98f150da4b3befe1f078a743839224568c00640d96fa8e79 · sha256:9cb4b99a7b89fc53… · /containers/cna/problemTypes/0/descriptions/0

Source references

7 source assertions
{"tags":["product"],"url":"https://github.com/open5gs/open5gs/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:55059a898793964b98f150da4b3befe1f078a743839224568c00640d96fa8e79 · sha256:9cb4b99a7b89fc53… · /containers/cna/references/6
{"tags":["patch"],"url":"https://github.com/open5gs/open5gs/commit/ebc66942b6f8f1fab2d640e71cf4e9f1a423b426"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:55059a898793964b98f150da4b3befe1f078a743839224568c00640d96fa8e79 · sha256:9cb4b99a7b89fc53… · /containers/cna/references/4
{"tags":["issue-tracking"],"url":"https://github.com/open5gs/open5gs/issues/4321"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:55059a898793964b98f150da4b3befe1f078a743839224568c00640d96fa8e79 · sha256:9cb4b99a7b89fc53… · /containers/cna/references/3
{"tags":["patch"],"url":"https://github.com/open5gs/open5gs/releases/tag/v2.7.7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:55059a898793964b98f150da4b3befe1f078a743839224568c00640d96fa8e79 · sha256:9cb4b99a7b89fc53… · /containers/cna/references/5
{"name":"Submit #805675 | Open5GS v.2.7.6 Denial of Service","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/805675"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:55059a898793964b98f150da4b3befe1f078a743839224568c00640d96fa8e79 · sha256:9cb4b99a7b89fc53… · /containers/cna/references/2
{"name":"VDB-360558 | Open5GS AMF gmm-handler.c denial of service","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/vuln/360558"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:55059a898793964b98f150da4b3befe1f078a743839224568c00640d96fa8e79 · sha256:9cb4b99a7b89fc53… · /containers/cna/references/0
{"name":"VDB-360558 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/360558/cti"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:55059a898793964b98f150da4b3befe1f078a743839224568c00640d96fa8e79 · sha256:9cb4b99a7b89fc53… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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