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Actively exploitedKnown ransomware use

CVE-2024-57727 SimpleHelp Path Traversal Vulnerability

SimpleHelp remote support software contains multiple path traversal vulnerabilities that allow unauthenticated remote attackers to download arbitrary files from the SimpleHelp host via crafted HTTP requests. These files may include server configuration files and hashed user passwords.

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 13 Feb 2025.
  • CISA lists it as known to be used in ransomware campaigns.
  • Rated Critical severity (CVSS 9.1, scored by CISA).
  • Named in Cybergen threat actor reporting: DragonForce, INC Ransom, Medusa, Play.
  • It has been in the catalogue for 631 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 is vulnerable to multiple path traversal vulnerabilities that enable unauthenticated remote attackers to download arbitrary files from the SimpleHelp host via crafted HTTP requests. These files include server configuration files containing various secrets and hashed user passwords.

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 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 critical, 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 6 Mar 2025 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-2024-57728 · RansomwareSimpleHelp Path Traversal VulnerabilityAdded 24 Apr 2026CVE-2024-57726 · RansomwareSimpleHelp Missing Authorization VulnerabilityAdded 24 Apr 2026

All 4 exploited SimpleHelp vulnerabilities

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Evidence

Sources

  1. CISA Known Exploited Vulnerabilities catalogue
  2. NVD: CVE-2024-57727
  3. CVE record: CVE-2024-57727
  4. FIRST EPSS
  5. simple-help.com/kb---security-vulnerabilities-01-2025
  6. horizon3.ai/attack-research/disclosures/critical-vulnerabilities-in-simplehelp-remote-support-softwa
  7. simple-help.com/kb---security-vulnerabilities-01-2025#security-vulnerabilities-in-simplehelp-5-5-7-a