Free5GC PFCP Message buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Free5GC. This impacts an unknown function of the component PFCP Message Handler. The manipulation results in buffer overflow. This vulnerability is known as CVE-2023-47346. Furthermore, an exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Free5GC (affected version not known). Affected is some unknown functionality of the component PFCP Message Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on availability. CVE summarizes:

Buffer Overflow vulnerability in free5gc 3.3.0, UPF 1.2.0, and SMF 1.2.0 allows attackers to cause a denial of service via crafted PFCP messages.

The weakness was published 11/14/2023 as 482. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2023-47346 since 11/06/2023. Technical details are unknown but a public exploit is available.

The exploit is shared for download at github.com. It is declared as proof-of-concept.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-51464). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 3.5
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/06/2023 🔍
11/14/2023 +8 days 🔍
11/14/2023 +0 days 🔍
02/22/2026 +831 days 🔍

Sourcesinfo

Product: github.com

Advisory: 482
Status: Confirmed

CVE: CVE-2023-47346 (🔍)
GCVE (CVE): GCVE-0-2023-47346
GCVE (VulDB): GCVE-100-245100
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 11/14/2023 02:33
Updated: 02/22/2026 13:56
Changes: 11/14/2023 02:33 (41), 12/08/2023 07:52 (11), 01/30/2026 08:25 (16), 02/22/2026 13:56 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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