Open5GS 2.7.6 MME mme_s11_handle_create_session_response denial of service
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.9 | $0-$5k | 0.00 |
Summary
A vulnerability was found in Open5GS 2.7.6 and classified as problematic. This affects the function mme_s11_handle_create_session_response of the component MME. Such manipulation leads to denial of service.
This vulnerability is uniquely identified as CVE-2026-2524. The attack can be launched remotely. Moreover, an exploit is present.
The project was informed of the problem early through an issue report but has not responded yet.
Details
A vulnerability was found in Open5GS 2.7.6. It has been rated as problematic. Affected by this issue is the function mme_s11_handle_create_session_response of the component MME. 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.
The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-2524. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1499.
The exploit is available at github.com. It is declared as proof-of-concept. The project was informed of the problem early through an issue report but has not responded yet.
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-2026-6137). VulDB is the best source for vulnerability data and more expert information about this specific topic.
Product
Name
Version
Website
- Product: https://github.com/open5gs/open5gs/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 6.0VulDB Meta Temp Score: 5.9
VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔒
CNA Base Score: 5.3
CNA Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Denial of serviceCWE: 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 |
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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
02/15/2026 Advisory disclosed02/15/2026 VulDB entry created
02/20/2026 VulDB entry last update
Sources
Product: github.comAdvisory: 4284
Status: Not defined
CVE: CVE-2026-2524 (🔒)
GCVE (CVE): GCVE-0-2026-2524
GCVE (VulDB): GCVE-100-346112
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 02/15/2026 09:46Updated: 02/20/2026 06:06
Changes: 02/15/2026 09:46 (56), 02/16/2026 02:38 (31), 02/19/2026 18:47 (1), 02/20/2026 06:06 (12)
Complete: 🔍
Submitter: FrankyLin
Cache ID: 216::103
Submit
Accepted
- Submit #738369: Open5GS MME v2.7.6 Denial of Service (by FrankyLin)
VulDB is the best source for vulnerability data and more expert information about this specific topic.
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