7.5

CVE-2026-1684: Free5GC SMF PFCP UDP Endpoint pfcp_reports.go HandleReports denial of service

Modified
Published 30-01-2026Last modified 23-02-2026

Vulnerability summary

CVE-2026-1684 is a high (CVSS 7.5) Improper Resource Shutdown or Release vulnerability in free5gc. EPSS estimates a 0.58% chance of exploitation in the next 30 days, higher than 47.2% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
40/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
0.58%
0%100%
Low · +0.05 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1github

Timeline

  1. 30-01-2026
    PublishedVulnerability first disclosed.
  2. 23-02-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

7 scores · 2 sources · 4 versions

EPSS trend

Probability

0.58%

Chance of exploitation in the next 30 days

Percentile

47%

Versus all other CVEs

30-day change

Increase +0.05 pp

From 0.53% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • githubUnverified

    Free5Gc

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Free5gc2 products

1 vendor · 2 products

References

7 links