VDB-313232 · CVE-2025-29646 · Issue 3747

Open5GS up to 2.7.2 PFCP SessionEstablishmentRequest Packet denial of service

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.3	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Open5GS up to 2.7.2. The impacted element is an unknown function of the component PFCP SessionEstablishmentRequest Packet Handler. Such manipulation leads to denial of service. This vulnerability is uniquely identified as CVE-2025-29646. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Open5GS up to 2.7.2 and classified as problematic. Affected by this issue is an unknown part of the component PFCP SessionEstablishmentRequest Packet Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

An issue in upf in open5gs 2.7.2 and earlier allows a remote attacker to cause a Denial of Service via a crafted PFCP SessionEstablishmentRequest packet with restoration indication = true and (teid = 0 or teid >= ogs_pfcp_pdr_teid_pool.size).

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2025-29646 since 03/11/2025. The exploitation is known to be easy. The attack may be launched remotely. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-18660). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Open5GS

Version

Website

Product: https://github.com/open5gs/open5gs/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

03/11/2025 CVE reserved
06/18/2025 +98 days Advisory disclosed
06/18/2025 +0 days VulDB entry created
06/24/2025 +5 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 3747
Status: Confirmed

CVE: CVE-2025-29646 (🔒)
GCVE (CVE): GCVE-0-2025-29646
GCVE (VulDB): GCVE-100-313232
EUVD: 🔒

Entryinfo

Created: 06/18/2025 23:51
Updated: 06/24/2025 01:46
Changes: 06/18/2025 23:51 (53), 06/19/2025 04:28 (1), 06/24/2025 01:46 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.