Open5GS up to 2.7.6 SGWC /sgwc/s11-handler.c sgwc_s11_handle_modify_bearer_request denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Open5GS up to 2.7.6. The impacted element is the function sgwc_s11_handle_modify_bearer_request of the file /sgwc/s11-handler.c of the component SGWC. The manipulation results in denial of service. This vulnerability is known as CVE-2026-1587. It is possible to launch the attack remotely. Furthermore, an exploit is available. It is best practice to apply a patch to resolve this issue. The issue report is flagged as already-fixed.

Detailsinfo

A vulnerability classified as problematic has been found in Open5GS up to 2.7.6. Affected is the function sgwc_s11_handle_modify_bearer_request of the file /sgwc/s11-handler.c of the component SGWC. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-1587. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

The exploit is shared for download 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.

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Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB 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: 🔒

CVSSv2info

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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: 🔒
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: Patch
Status: 🔍

0-Day Time: 🔒

Timelineinfo

01/29/2026 Advisory disclosed
01/29/2026 +0 days VulDB entry created
02/04/2026 +6 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 4272
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2026-1587 (🔒)
GCVE (CVE): GCVE-0-2026-1587
GCVE (VulDB): GCVE-100-343350
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 01/29/2026 07:03
Updated: 02/04/2026 03:14
Changes: 01/29/2026 07:03 (59), 01/30/2026 03:51 (45), 02/04/2026 03:14 (11)
Complete: 🔍
Submitter: FrankyLin
Cache ID: 216::103

Submitinfo

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