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Actively exploitedKnown ransomware use

CVE-2024-57728 SimpleHelp Path Traversal Vulnerability

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.

From the CISA KEV catalogue version 2026.11.06, with Cybergen analysis. Updated 6 Nov 2026.

Our Assessment

Should You Worry?

Patch nowCybergen assessment
  • CISA confirmed exploitation in the wild and added it to the Known Exploited Vulnerabilities catalogue on 24 Apr 2026.
  • CISA lists it as known to be used in ransomware campaigns.
  • Rated High severity (CVSS 7.2, scored by CISA).
  • Named in Cybergen threat actor reporting: DragonForce.
  • It has been in the catalogue for 196 days. Systems still unpatched now have almost certainly been scanned for it.
The Vulnerability

What It Is

SimpleHelp remote support software v5.5.7 and before 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.

From Watch to Action

What To Do Now

  1. 1

    Find it

    Search your asset inventory and external attack surface for SimpleHelp SimpleHelp. Include cloud images, appliances and anything a supplier runs for you.

    Attack Surface Management
  2. 2

    Fix it

    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

    Vulnerability Management
  3. 3

    Hunt for compromise

    If an affected system was reachable before you patched, assume it may have been hit. Check logs, new accounts, web shells and outbound connections from the date of exposure.

    Incident Response
  4. 4

    Prove it is fixed

    Rescan or test the system after patching. Upgrades that fail silently and forgotten secondary instances are common.

    Penetration Testing

Vendor Advisories

Regulation

The Compliance Clock

Cyber EssentialsRated high, so if it affects devices in your Cyber Essentials scope, the update must be installed within 14 days of the vendor releasing it.NIS2If exploitation causes a significant incident, essential and important entities owe their CSIRT an early warning within 24 hours and a notification within 72 hours.DORAFinancial entities must classify ICT incidents and send an initial notification for a major incident within strict deadlines, with exploited flaws a common cause.US federal (BOD 22-01)Federal civilian agencies had until 8 May 2026 to remediate. A sensible benchmark for everyone else.

General guidance, not legal advice. Your obligations depend on your sector, scope and jurisdiction.

Stay Ahead

More Exploited SimpleHelp Flaws

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CVE-2026-48558SimpleHelp Authentication Bypass VulnerabilityAdded 29 Jun 2026CVE-2024-57726 · RansomwareSimpleHelp Missing Authorization VulnerabilityAdded 24 Apr 2026CVE-2024-57727 · RansomwareSimpleHelp Path Traversal VulnerabilityAdded 13 Feb 2025

All 4 exploited SimpleHelp vulnerabilities

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Evidence

Sources

  1. CISA Known Exploited Vulnerabilities catalogue
  2. NVD: CVE-2024-57728
  3. CVE record: CVE-2024-57728
  4. FIRST EPSS
  5. simple-help.com/kb---security-vulnerabilities-01-2025#security-vulnerabilities-in-simplehelp-5-5-7-a
  6. horizon3.ai/attack-research/disclosures/critical-vulnerabilities-in-simplehelp-remote-support-softwa