CVE-2025-56568

HIGH
MEDIUM Priority: 0.02 BB Relevance: 75/100
Published: 2026-04-30 Modified: 2026-11-04 First seen: 2026-11-04 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: None
A: High

Description

Assertion failure vulnerability in the PCO (Protocol Configuration Options) parser in the SMF (Session Management Function) component of Open5GS before v2.7.5 allows remote attackers to cause denial of service via specially crafted NGAP messages containing malformed length fields in protocol configuration data.

Weakness Classification (1)

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.33%
Raw Score 0.003320
Percentile 26.8%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00332
2026-11-13
0.00332
2026-11-12
0.00332
2026-11-10
0.00332
2026-11-09
0.00332
2026-11-08
0.00332
2026-11-07
0.00332
2026-11-06
0.00332
2026-11-05
0.00332
2026-11-04
0.00332

Intelligence Sources

nvd ref →