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CVE-2026-108102— Open5GS through 2.8.0 Heap Out-of-Bounds Read via PFCP Volume Measurement IE

Quick assessment

Affected
open5gs open5gs
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Open5GS 2.8.0 及之前版本中，lib/pfcp/types.c 文件中的 ogs_pfcp_parse_volume_measurement() 函数存在堆缓冲区越界读取漏洞。该漏洞允许远程未认证攻击者读取超出指示元素（IE）缓冲区的边界数据。攻击者可向 SMF 通过 UDP 端口 8805 发送 PFCP Session Report Request 消息，并附带一个长度较短且所有标志位均置位的 Volume Measurement IE，从而最多可读取 48 字节的数据，并可能导致 SMF 崩溃。

CVSS 5.3 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
open5gs open5gs ≤ 2.8.0 affected
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I. Basic Information for CVE-2026-108102

Vulnerability Information
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Vulnerability Title
Open5GS through 2.8.0 Heap Out-of-Bounds Read via PFCP Volume Measurement IE
Source: CVE Program / CVE List V5
Vulnerability Description
Open5GS through 2.8.0 contains a heap out-of-bounds read vulnerability in ogs_pfcp_parse_volume_measurement() in lib/pfcp/types.c that allows remote unauthenticated attackers to read past IE buffers. Attackers can send a PFCP Session Report Request to the SMF on UDP port 8805 with a short, all-flags Volume Measurement IE, reading up to 48 bytes and potentially crashing the SMF.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
open5gs open5gs 0 ~ 2.8.0 -

II. Public POCs for CVE-2026-108102

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III. Intelligence Information for CVE-2026-108102

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Patches & Fixes for CVE-2026-108102 (1)

Vendor Advisories for CVE-2026-108102 (2)

Other References for CVE-2026-108102 (1)

Same Patch Batch · open5gs · 2026-10-09 · 3 CVEs total

CVE-2026-108105 5.9 MEDIUM Open5GS through 2.8.0 MME Reachable Assertion via GTPv1 SGSN Context Request
CVE-2026-108103 5.3 MEDIUM Open5GS through 2.8.0 Heap Out-of-Bounds Read via PFCP Dropped DL Traffic Threshold IE

IV. Related Vulnerabilities

Same product: open5gs
Same vendor: open5gs
Same weakness: CWE-125

V. Comments for CVE-2026-108102

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