CVE-2026-78157: Out-of-Bounds Read in Open5GS
Description
CVE-2026-78157 is an out-of-bounds read vulnerability in Open5GS version 2.8.0 affecting the pcrf_rx_aar_cb function in the Rx AA-Request Handler component. The vulnerability can be triggered remotely by manipulating input to this function. A patch has been identified to fix this issue.
CVSS v4.0
Score 5.3medium
Affected software
Open5GS
cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-78157 exists in Open5GS 2.8.0 within the pcrf_rx_aar_cb function of the src/pcrf/pcrf-rx-path.c file, part of the Rx AA-Request Handler. An attacker can remotely cause an out-of-bounds read by manipulating inputs to this function. This can lead to potential information disclosure or application instability. The issue has been addressed in a patch identified by commit c18dc6938bf63cc7374315d3dca303d92066e746.
Potential Impact
The vulnerability allows a remote attacker to cause an out-of-bounds read, which may lead to information disclosure or application crashes. The CVSS 4.0 score is 5.3 (medium severity), indicating a moderate impact with network attack vector and low complexity.
Mitigation Recommendations
A patch is available to fix this vulnerability. It is recommended to deploy the patch identified by commit c18dc6938bf63cc7374315d3dca303d92066e746 to remediate the issue in Open5GS 2.8.0.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-08-23T11:34:36.749Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a8b8ed4acd9273b4991ed8a
Added to database: 08/24/2026, 00:22:44 UTC
Last enriched: 09/10/2026, 23:17:54 UTC
Last updated: 10/07/2026, 06:48:18 UTC
Views: 74
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