CVE-2024-57728
HighExploitedPublic exploitSimpleHelp 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.
Published Jan 15, 2025 · Updated Aug 4, 2026
Key Facts
Patch immediately- CVE-2024-57728 is a high-severity vulnerability (CVSS 7.2 v3.1) affecting Simplehelp (Simple-Help).
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Apr 17, 2025 and is known to be used in ransomware campaigns. Public exploit code is available.
- EPSS estimates a 65% probability of exploitation in the next 30 days.
- Fixed versions are available, including Simplehelp 5.5.8.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
7.2
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
65%
Higher than 99.2% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings, used by ransomware
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2024-57728 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Apr 24, 2026 | May 8, 2026 | Known |
| Industry KEV feed | Apr 17, 2025 | May 8, 2026 | Known |
| CIRCL KEV | Apr 24, 2026 | May 8, 2026 | Not reported |
| ENISA EUVD | Apr 24, 2026 | n/a | Not reported |
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.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| SimplehelpSimple-Help | See advisory | 5.5.8 |
Patched Releases
Simplehelp
5.5.8
Timeline
Publicly disclosed
Jan 15, 2025
Added to Industry KEV feed
Apr 17, 2025
Added to CISA KEV
Apr 24, 2026
Added to CIRCL KEV
Apr 24, 2026
Added to ENISA EUVD
Apr 24, 2026
Last updated
Aug 4, 2026
Weakness Type
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- CWE-59 Improper Link Resolution Before File Access ('Link Following')
References
- advisoryhttps://simple-help.com/kb---security-vulnerabilities-01-2025#security-vulnerabilities-in-simplehelp-5-5-7-and-earlier
- advisoryhttps://www.horizon3.ai/attack-research/disclosures/critical-vulnerabilities-in-simplehelp-remote-support-software/
- advisoryhttps://www.trendmicro.com/vinfo/us/security/news/ransomware-spotlight/ransomware-spotlight-dragonforce
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
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.
Affected: Simplehelp (Simple-Help). The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Apr 17, 2025 and is known to be used in ransomware campaigns.
Yes. It was added on Apr 24, 2026 with a federal remediation due date of May 8, 2026.
Public exploit code is available.
Fixed versions are available, including Simplehelp 5.5.8.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2024-57728 Running On Your Attack Surface?
Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.
Request A Demo