VDB-367409 · Submit #818598 · CVE-2026-10156

Open5GS up to 2.7.7 nf-instances Endpoint /lib/sbi/nnrf-handler.c handle_amf_info nf_info_pool resource consumption

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.
3.9	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Open5GS up to 2.7.7. It has been rated as problematic. This impacts the function handle_amf_info in the library /lib/sbi/nnrf-handler.c of the component nf-instances Endpoint. The manipulation of the argument nf_info_pool leads to resource consumption. This vulnerability is traded as CVE-2026-10156. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. It is suggested to install a patch to address this issue. The issue report is flagged as already-fixed.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Open5GS up to 2.7.7. This issue affects the function handle_amf_info in the library /lib/sbi/nnrf-handler.c of the component nf-instances Endpoint. The manipulation of the argument nf_info_pool with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-10156. The exploitation is known to be easy. The attack may be initiated remotely. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1499 for this issue.

The exploit is available at github.com. It is declared as proof-of-concept. The issue report is flagged as already-fixed.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-33472). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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: 3.9

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
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: 🔒

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Timelineinfo

05/30/2026 Advisory disclosed
05/30/2026 +0 days VulDB entry created
05/31/2026 +1 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 4480
Status: Confirmed

CVE: CVE-2026-10156 (🔒)
GCVE (CVE): GCVE-0-2026-10156
GCVE (VulDB): GCVE-100-367409
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 05/30/2026 08:10
Updated: 05/31/2026 03:00
Changes: 05/30/2026 08:10 (59), 05/31/2026 03:00 (1)
Complete: 🔍
Submitter: FrankyLin
Cache ID: 216::103

Submitinfo

Accepted

Submit #818598: Open5GS NRF v2.7.7 Denial of Service (by FrankyLin)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.