SimpleHelp remote support software v5.5.7 and before allows admin users to upload…
Priority CRITICAL 91Exploited in the wildCWE-22Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
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.
Why it matters now
Exploitation Active In CISA KEV since 2026-04-24CISA due date 2026-05-08Known ransomware use
EPSS 0.64468 99th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:simple-help:simplehelp:*:*:*:*:*:*:*:* | before 5.5.8 | Vulnerable | SimpleHelp |
- cpe:2.3:a:simple-help:simplehelp:*:*:*:*:*:*:*:* Versions before 5.5.8 Vulnerable ·SimpleHelp
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-04-24 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2024-57728
- 2026-10-03 Alias added: GHSA-mchm-7mqx-7299
References
Advisory 3
- https://www.horizon3.ai/attack-research/disclosures/critical-vulnerabilities-in-simplehelp-remote-support-software/
- https://simple-help.com/kb---security-vulnerabilities-01-2025#security-vulnerabilities-in-simplehelp-5-5-7-and-earlier
- https://www.trendmicro.com/vinfo/us/security/news/ransomware-spotlight/ransomware-spotlight-dragonforce
More Simplehelp vulnerabilities
- TI-2026-35916 SimpleHelp Authentication Bypass via Missing OIDC JWT Signature Verification KEVCVSS 4.0CRITICAL 9.5
- TI-2024-38047 SimpleHelp remote support software v5.5.7 and before has a vulnerability that allows… KEVCVSS 3.1CRITICAL 9.9
- TI-2024-38048 SimpleHelp remote support software v5.5.7 and before is vulnerable to multiple path… KEVCVSS 3.1CRITICAL 9.1
- TI-2025-24925 SimpleHelp Inclusion of functionality from untrusted control sphere CVSS 3.1HIGH 8.8
- TI-2025-24926 SimpleHelp Cross Site Request Forgery CVSS 3.1HIGH 8.8
Sources
- CVE-2024-57728 · CVE Program
- CVE-2024-57728 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-mchm-7mqx-7299 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences