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CVE mentions, exploit signals, and PoC evidence in one fast public view.

CVE detail

CVE-2026-41135

free5GC UDR is the Policy Control Function (PCF) for free5GC, an an open-source project for 5th generation (5G) mobile core networks. A memory leak vulnerability in versions prior to 1.4.3 allows any unauthenticated attacker with network access to the PCF SBI interface to cause uncontrolled memory growth by sending repeated HTTP requests to the OAM endpoint. The root cause is a `router.Use()` call inside an HTTP handler that registers a new CORS middleware on every incoming request, permanently growing the Gin router's handler chain. This leads to progressive memory exhaustion and eventual Denial of Service of the PCF, preventing all UEs from obtaining AM and SM policies and blocking 5G session establishment. Version 1.4.3 contains a patch.

CVSS 7.5 · HighBuzz score 16.0

Buzz score

Why this CVE is surfacing

Buzz score total 16.0

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 11.0 · diversity 5.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
11.0
2 evidence mentions in the snapshot
Diversity score
5.0
1 sources across 1 categories
KEV score
0.0
No KEV entry observed
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
0
within the 30d window
Peak daily
0
highest bucket

Evidence

Source links by recency

Newest mentions first
2 source links · newest first

Exploit code

Public exploit repository references

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0 repository references · best confidence N/A · max 0 stars
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Related records

Similar CVEs

6 related CVEs with shared weakness or product evidence
  • CVE-2026-30653

    An issue in Free5GC v.4.2.0 and before allows a remote attacker to cause a denial of service via the function HandleAuthenticationFailure of the component AMF

    CVSS 7.5 · High
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  • CVE-2025-60638

    An issue was discovered in Free5GC v4.0.0 and v4.0.1 allowing an attacker to cause a denial of service via crafted POST request to the Nnssf_NSSAIAvailability API.

    CVSS 7.5 · High
  • CVE-2023-47025

    An issue in Free5gc v.3.3.0 allows a local attacker to cause a denial of service via the free5gc-compose component.

    CVSS 5.5 · Medium
  • CVE-2022-38871

    In Free5gc v3.0.5, the AMF breaks due to malformed NAS messages.

    CVSS 7.5 · High
  • CVE-2026-10695

    IBM Db2 12.1.0 through 12.1.4 federated server is vulnerable to a denial of service when running non fenced federated queries.

    CVSS 6.2 · Medium
    1 mention
  • CVE-2024-25039

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    CVSS 7.5 · High
    1 mention