CVE-2024-57728 — Microsoft
HIGHCVE-2024-57728 is a high-severity (CVSS 7.2) CWE-59 vulnerability. It is in CISA's Known Exploited Vulnerabilities catalog (added 2026-04-24) and has been used in ransomware campaigns — treat it as actively exploited and patch now. No vendor fix is recorded yet; mitigation options are listed below.
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…
Exploitation Status
Actively exploited in the wild
- Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2026-04-24 — including use in ransomware campaigns. Federal agencies were required to remediate by 2026-05-08.
- A successful exploit gives an attacker total control of the affected component, not partial access.
Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2024-57728.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
CVE-2024-57728 by exploitation likelihood (EPSS) against impact (CVSS). In the shaded patch-first corner (EPSS 50%+, CVSS 7.0+).
Where this sits among everything scored
Of 395,249 CVEs with a current EPSS score, this one falls in the 50–90% band (highlighted). Counts from FIRST.org, log-scaled.
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.
Affected Products
simplehelpsimple-helpDetection & mitigation playbook
VulnerabilityDetect
Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).
Remediation status
No fixed release is recorded for CVE-2024-57728 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.
Mitigate without a patch
Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.
How to detect CVE-2024-57728
A community-maintained Nuclei template exists for this CVE. You can scan for it directly:
nuclei -id cve-2024-57728 -u https://target- Template
- SimpleHelp <= 5.5.7 - Arbitrary File Upload
- Severity
- high
- Impact
- An admin technician (or a low-privileged technician who first escalates via CVE-2024-57726 ) can write a crafted zip entry to any path on the host - a crontab on Linux, a replaced executable or DLL on Windows - and obtain remote code execution as the SimpleHelp server user, the chain ransomware operators such as Medusa and DragonForce used to take over managed estates.
- Remediation
- Upgrade SimpleHelp to 5.5.8 or later (or apply the vendor's 070125 patch to the 5.4.10 and 5.3.9 branches), then rotate all administrator and technician passwords and restrict the source IP addresses allowed to log in.
Template by ProjectDiscovery nuclei-templates (popy21), MIT licensed. View the full template. Scan only systems you are authorised to test.
Frequently Asked Questions
Is CVE-2024-57728 in your dependencies?
Find it across , including transitive dependencies.