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

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-91855— Open5GS PFCP Message handler.c denial of service

Quick assessment

Affected
n/a 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.

在 Open5GS 版本 2.7.7 及之前版本中发现了一个安全漏洞。该漏洞影响的是 PFCP 消息处理器组件中文件 的一个未知功能。通过特定操作可触发拒绝服务（DoS）攻击，且该攻击可通过远程方式利用。相关利用代码已公开，可能被用于实施攻击。修复补丁的提交 ID 为 。建议应用此补丁以修复该问题。 另外，CVE-2025-29339 描述的是 Open5GS UPF 中另一个不同的断言失败（assertion failure）漏洞，与本漏洞无关。

CVSS 5.3 · Medium

Affected Version Matrix 8

VendorProduct Version RangeStatus
n/a Open5GS 2.7.0 affected
2.7.1 affected
2.7.2 affected
2.7.3 affected
2.7.4 affected
2.7.5 affected
2.7.6 affected
2.7.7 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-91855

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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 PFCP Message handler.c denial of service
Source: CVE Program / CVE List V5
Vulnerability Description
A security flaw has been discovered in Open5GS up to 2.7.7. Affected by this vulnerability is an unknown functionality of the file lib/pfcp/handler.c of the component PFCP Message Handler. Performing a manipulation results in denial of service. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. The patch is named 028e1dbb5e3271035ccee906ef417a97fc523f71. Applying a patch is the recommended action to fix this issue. CVE-2025-29339 describes a different assertion failure vulnerability in Open5GS UPF.
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
不恰当的资源关闭或释放
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
- Open5GS 2.7.0 cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-91855

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-91855

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-91855 (1)

Proof of Concept for CVE-2026-91855 (1)

Same Patch Batch · n/a · 2026-09-15 · 34 CVEs total

CVE-2026-91848 7.3 HIGH WuzhiCMS index.php getDataOfJson sql injection
CVE-2026-91087 7.3 HIGH GPAC Compositor media_object.c gf_mo_get_od_id use after free
CVE-2026-91089 6.3 MEDIUM GPAC base_scenegraph.c gf_node_get_name_and_id use after free
CVE-2026-91086 6.3 MEDIUM GPAC MPEG Video Reframer reframe_mpgvid.c mpgviddmx_process heap-based overflow
CVE-2026-91849 6.3 MEDIUM WuzhiCMS Avatar Upload index.php setAvatar unrestricted upload
CVE-2026-91088 4.8 MEDIUM GPAC URL url.c gf_url_concatenate_ex heap-based overflow
CVE-2026-91091 4.3 MEDIUM GPAC Node Insertion base_scenegraph.c gf_node_list_insert_child memory corruption
CVE-2026-91090 3.9 LOW GPAC base_scenegraph.c gf_node_activate_ex stack-based overflow
CVE-2026-52484 MitraStar GPT-2742GL_g2.5远程代码执行漏洞
CVE-2026-51133 za-internet C-MOR ≤6.0104 跨站脚本漏洞
CVE-2025-66974 Prolink DS-3202M-UKv3 设备拒绝服务漏洞
CVE-2026-39040 BharatMLStack 1.3.0 Trufflebox UI XSS漏洞
CVE-2026-39038 BharatMLStack v1.3.0 存在XSS漏洞
CVE-2026-39039 BharatMLStack≤1.3.0 localStorage泄露敏感会话信息
CVE-2026-79409 Bagisto 2.4.9 信息泄露漏洞
CVE-2026-88742 Bacularis 1.0.0-6.5.0 存储型跨站脚本漏洞
CVE-2026-88743 Bacularis 4.7.0-6.5.0 存储型XSS漏洞
CVE-2026-79411 Bagisto 2.4.9 权限提升至管理员漏洞
CVE-2026-79410 Bagisto v2.4.9购物车参数校验缺陷致订单总价降低
CVE-2026-51134 C-MOR 6.0104 视频监控系统路径遍历

Showing top 20 of 34 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Open5GS
Same vendor: n/a
Same weakness: CWE-404

V. Comments for CVE-2026-91855

No comments yet

Leave a comment