Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%

Buy Us a Coffee

CVE-2026-116544— Open5GS 2.6.1 through 2.8.0 Out-of-Bounds Read via parse_scheme_output

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 2.6.1 至 2.8.0 版本在文件的函数中，由于长度验证不完整，在 SUCI 去隐（de-concealment）过程中存在越界读取漏洞。远程未认证的 UE（用户设备）或 SBI（服务化接口）对等方可向 UDM（统一数据管理功能）提交一个方案输出为 42 字节的伪造 SUCI，从而触发堆缓冲区越界读取（heap over-read）。

CVSS 3.7 · Low EPSS 0.35% · P29 Updated Oct 27, 2026

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

Vendor	Product	Version Range	Status
open5gs	open5gs	`2.6.1≤ 2.8.0`	affected

Get alerts for future matching vulnerabilities Log in to subscribe

Vulnerability Information

Have questions about the vulnerability? See if Shenlong's analysis helps!

View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title

Open5GS 2.6.1 through 2.8.0 Out-of-Bounds Read via parse_scheme_output

Source: CVE Program / CVE List V5

Vulnerability Description

Open5GS 2.6.1 through 2.8.0 contains an out-of-bounds read vulnerability in parse_scheme_output() in lib/sbi/conv.c during SUCI de-concealment due to incomplete length validation. Remote unauthenticated UEs or SBI peers can submit a crafted SUCI with a 42-byte scheme output to a UDM, triggering a heap over-read past the buffer.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

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	2.6.1 ~ 2.8.0	-

II. Public POCs for CVE-2026-116544

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-116544

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-116544 (1)

🔗 [SBI] Fix SUCI scheme-output length validation · open5gs/open5gs@fdddcd5 · GitHub patch

Vendor Advisories for CVE-2026-116544 (2)

Other References for CVE-2026-116544 (1)

🔗 GitHub - open5gs/open5gs: Open5GS is a C-language Open Source implementation for 5G Core and EPC, i.e. the core network of LTE/NR network (Release-19) · GitHub Read full article product

https://www.cve.org/CVERecord?id=CVE-2026-116544

IV. Related Vulnerabilities

Same product: open5gs

Same vendor: open5gs

Same weakness: CWE-125