CISA KEV ⚡ ACTIVELY EXPLOITED CVSS 9.5 🔴 CVE ANALYSISPublished: April 24, 2026 — CYBERDUDEBIVASH SENTINEL APEX

CVE-2024-57728: SimpleHelp Path Traversal Vulnerability — CISA KEV Active Exploitation

SimpleHelp contains a path traversal vulnerability that allows admin users to upload arbitrary files anywhere on the file system by uploading a crafted zip file (i.e. zip slip). This can be exploited to execute arbitrary code on the host in the context of the SimpleHelp server user.

9.5

CVSS Score

CRITICAL

Severity

YES

Exploited ITW

⚠️ KEV

CISA Status

🚨

CISA KNOWN EXPLOITED VULNERABILITY — MANDATORY REMEDIATION

Confirmed active exploitation. CISA KEV catalog confirmed. Federal agencies must remediate by 2026-05-08. Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

⚠ Intelligence Overview

This critical vulnerability in SimpleHelp SimpleHelp (CVSS 9.5) represents a significant attack surface for threat actors. CYBERDUDEBIVASH SENTINEL APEX assesses exploitation to be technically feasible with moderate effort. Organizations running SimpleHelp in internet-facing or privileged positions face immediate risk. The combination of attack vector, complexity score, and potential impact demands priority-zero remediation.

CISA KNOWN EXPLOITED VULNERABILITY: This vulnerability has been added to the CISA KEV catalog confirming active exploitation. Federal agencies must remediate by 2026-05-08. Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

CYBERDUDEBIVASH SENTINEL APEX URGENCY: MAXIMUM. Active exploitation confirmed — treat as active incident requiring immediate response.

🎯 MITRE ATT&CK Mapping

Category	Mapping
Primary Tactic	Execution
Primary Technique	T1203 — Exploitation for Client Execution
Sub-Technique	T1059 — Command & Scripting Interpreter
Weakness (CWE)	See NVD entry
Intel Type	🔴 CVE ANALYSIS
Source	cisa_kev

🔴 CVE Reference

CVE ID	Reference	Score
CVE-2024-57728	NVD →	CVSS 9.5

🔍 Detection — Sigma Rule

Deploy across your SIEM (Splunk, Elastic, Microsoft Sentinel, QRadar). SOC Pro subscribers receive pre-compiled SIEM-native query packs.

Sigma YAMLtitle: CVE-2024-57728 Exploitation Attempt — SimpleHelp  SimpleHelp
id: d6c5b0271f1c0d96-0350
status: experimental
description: Detects exploitation of CVE-2024-57728 in SimpleHelp  SimpleHelp
author: CYBERDUDEBIVASH SENTINEL APEX (bivash@cyberdudebivash.com)
date: 2026-04-27
references:
    - https://nvd.nist.gov/vuln/detail/CVE-2024-57728
    - https://blog.cyberdudebivash.in/
tags:
    - attack.initial_access
    - attack.t1190
    - cve-2024-57728
logsource:
    category: webserver
detection:
    keywords:
        - 'CVE-2024-57728'
        - 'cve-2024-57728'
    condition: keywords
falsepositives:
    - Security scanners
level: critical

📡 Detection — YARA Rule

Deploy to endpoint detection tools and threat hunting platforms.

YARArule CVE_2024_57728_Exploitation {
    meta:
        description = "Detects artifacts related to CVE-2024-57728 exploitation in SimpleHelp  SimpleHelp"
        author      = "CYBERDUDEBIVASH SENTINEL APEX"
        date        = "2026-04-27"
        severity    = "CRITICAL"
        cvss        = "9.5"
        reference   = "https://nvd.nist.gov/vuln/detail/CVE-2024-57728"
    strings:
        $id_str  = "CVE-2024-57728" ascii nocase
        $product = "SimpleHelp" ascii nocase wide
    condition:
        any of them
}

🛡️ SOC Response Playbook

IMMEDIATE (0-1hr): Identify all instances of SimpleHelp in your environment via asset inventory
IMMEDIATE (0-1hr): Apply vendor patch — no maintenance window exception
IMMEDIATE (1-2hr): If no patch: implement WAF rules, ACLs, or compensating controls
SHORT-TERM (2-4hr): Deploy Sigma detection rule to SIEM — validate alert generation
SHORT-TERM (4-8hr): Review logs for exploitation indicators
SHORT-TERM (8-24hr): Hunt for post-exploitation: new accounts, lateral movement, persistence
MANDATORY: CISA KEV deadline 2026-05-08 — document remediation for compliance
ONGOING: Subscribe to SimpleHelp security advisories for follow-on patches

📎 Intelligence References

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⚡ CYBERDUDEBIVASH SENTINEL APEX

Intelligence report generated by CYBERDUDEBIVASH SENTINEL APEX v3.0
Report ID: SENTINEL-CVE-2024-57728-2026-04-27 — Source: cisa_kev
© 2026 CYBERDUDEBIVASH PRIVATE LIMITED
Republication requires written attribution to CYBERDUDEBIVASH SENTINEL APEX

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