Open5GS up to 2.7.7 Transfer Endpoint src/amf/namf-handler.c null pointer dereference
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.1 | $0-$5k | 0.24+ |
Summary
A vulnerability, which was classified as problematic, has been found in Open5GS up to 2.7.7. Impacted is an unknown function of the file src/amf/namf-handler.c of the component Transfer Endpoint. Performing a manipulation results in null pointer dereference. This vulnerability was named CVE-2026-82588. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.
Details
A vulnerability, which was classified as problematic, was found in Open5GS up to 2.7.7. This affects an unknown functionality of the file src/amf/namf-handler.c of the component Transfer Endpoint. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability.
It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-82588. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details of the vulnerability are known, but there is no available exploit.
Upgrading to version 2.8.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch abf8a836564b966b5141110fc25ed413c4f17522 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Product
Name
Version
License
Website
- Product: https://github.com/open5gs/open5gs/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.3VulDB Meta Temp Score: 4.1
VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv2
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Null pointer dereferenceCWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔒
Upgrade: Open5GS 2.8.0
Patch: abf8a836564b966b5141110fc25ed413c4f17522
Timeline
08/30/2026 Advisory disclosed08/30/2026 VulDB entry created
08/30/2026 VulDB entry last update
Sources
Product: github.comAdvisory: github.com
Status: Confirmed
CVE: CVE-2026-82588 (🔒)
GCVE (CVE): GCVE-0-2026-82588
GCVE (VulDB): GCVE-100-397083
Entry
Created: 08/30/2026 08:15Changes: 08/30/2026 08:15 (56)
Complete: 🔍
Submitter: ZiyuLin
Cache ID: 216::103
Submit
Accepted
- Submit #891891: Open5GS AMF v2.7.7 Denial of Service (by ZiyuLin)
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
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