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CVE-2026-1684 (GCVE-0-2026-1684)

Vulnerability from cvelistv5 – Published: 2026-01-30 14:32 – Updated: 2026-02-23 09:08
VLAI
Title
Free5GC SMF PFCP UDP Endpoint pfcp_reports.go HandleReports denial of service
Summary
A vulnerability was found in Free5GC SMF up to 4.1.0. Affected by this issue is the function HandleReports of the file /internal/context/pfcp_reports.go of the component PFCP UDP Endpoint. The manipulation results in denial of service. The attack can be executed remotely. It is advisable to implement a patch to correct this issue.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C
5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-30 14:58 UTC
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.343477 vdb-entrytechnical-description
https://vuldb.com/?ctiid.343477 signaturepermissions-required
https://vuldb.com/?submit.739655 third-party-advisory
https://vuldb.com/?submit.739656 third-party-advisory
https://github.com/free5gc/free5gc/issues/806 issue-tracking
https://github.com/free5gc/smf/pull/188 issue-trackingpatch
https://github.com/free5gc/smf/ product
Impacted products
Vendor Product Version CPE status
Free5GC SMF Affected: 4.0
Affected: 4.1.0
guessed Create a notification for this product.
Credits
ZiyuLin (VulDB User)
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.