CVE-2025-70983

Critical

Published: 23 January 2026

Published

23 January 2026

Modified

11 February 2026

KEV Added

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Patch

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CVSS Score 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS Score 0.0002 5.2th percentile

Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-70983 is a critical-severity Improper Access Control (CWE-284) vulnerability in Bladex Springblade. Its CVSS base score is 9.9 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 5.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 AC-24 (Access Control Decisions) and AC-3 (Access Enforcement).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploitation for Privilege Escalation (T1068). What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

AC-3 Access Enforcement good match

prevent

Enforces approved authorizations for access to system resources, directly addressing the incorrect access control in SpringBlade's authRoutes function that enables privilege escalation.

AC-6 Least Privilege good match

prevent

Implements least privilege to restrict low-level privileged attackers from escalating privileges via the authRoutes vulnerability.

AC-24 Access Control Decisions good match

prevent

Provides capability for explicit access control decisions on system resources, mitigating missing authorization in authRoutes that allows low-privilege escalation.

MITRE ATT&CK Enterprise TechniquesAI

T1068 Exploitation for Privilege Escalation Privilege Escalation

Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.

attack.mitre.org →

Why these techniques?

Direct privilege escalation from low-privileged access via missing authorization in authRoutes (CWE-284/862).

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

NVD Description

Incorrect access control in the authRoutes function of SpringBlade v4.5.0 allows attackers with low-level privileges to escalate privileges.

Deeper analysisAI

CVE-2025-70983 is an incorrect access control vulnerability affecting the authRoutes function in SpringBlade version 4.5.0. Published on 2026-01-23, this issue enables attackers with low-level privileges to escalate their privileges. It carries a CVSS v3.1 base score of 9.9 (AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H) and maps to CWE-284 (Improper Access Control) and CWE-862 (Missing Authorization).

Attackers with low-level privileges (PR:L) can exploit this vulnerability remotely over the network (AV:N) with low attack complexity (AC:L) and no user interaction (UI:N). Successful exploitation changes scope (S:C) and grants high impacts on confidentiality, integrity, and availability (C:H/I:H/A:H), allowing privilege escalation within the affected SpringBlade instance.

Mitigation details are available in referenced sources, including the SpringBlade GitHub repository at https://github.com/chillzhuang/SpringBlade, the related issue tracker at https://github.com/chillzhuang/SpringBlade/issues/35, and a gist at https://gist.github.com/old6ma/9c4d2ba32cd8f562cb80796538157912. Security practitioners should review these for patches or workarounds specific to SpringBlade v4.5.0.