South Korea's ESTsoft, founded in 1993, builds endpoint security, remote access, and IT management tools alongside its wider software lineup. AI-generated from public sourcesThe starting point for every profile: auto-generated by 0-Doubt from public vendor materials, and not yet confirmed by the vendor or an independent analyst. Nothing here is hidden or overstated — it simply has not been reviewed yet.Where every profile starts, before the vendor or an analyst has reviewed it. A higher label means a more independent source — not a better product.How trust works →
Tools & products
Showing the 12 closest of 287 — see all.
1 of 5 independent trust signals established
ESTsoft has one dimension with established evidence. The rest have not been confirmed yet.
Not yet established: Independently verified · Behaviour under stress · Disclosure posture · Momentum
Has anyone other than the vendor confirmed this?
Nothing here has been confirmed by an independent third party yet.
Is this a real, durable business?
How long this vendor has been operating, and who stands behind them.
Security headers (2/5) — checked 10/18/2026
Infrastructure & transparency signals
Likely-exploited estimates here rest on a median of 2 EPSS observations per CVE — too little history to read as a trend yet. It deepens daily as scores are collected.
Protection Mechanism Failure vulnerability in ESTsoft ALZip on Windows allows SmartScreen bypass.This issue affects ALZip: from 12.01 before 12.29.
A denial of service vulnerability exists in the malware scan functionality of ESTsoft Alyac 2.5.8.645. A specially-crafted PE file can lead to killing target process. An attacker can provide a malicio…
Not a quality rating or endorsement — a measure of how much verified, disclosed data we actually have about this vendor. A low score usually means "we don't have much verified information yet," not "this is a bad vendor." Never used to sort or rank vendor lists.
The platform admin controls the formula's weights.
Product information on this page is auto-generated by 0-Doubt from public sources and not yet confirmed by the vendor or an independent analyst, unless an item is individually labelled otherwise. How trust works →
What do they do when something goes wrong?
What their public record shows about handling vulnerabilities and outages.
Do they tell you the awkward things unprompted?
How much this vendor volunteers before you have to ask.
Are they still shipping, or coasting?
Whether this vendor is visibly still building.
Nothing checked here yet — this is not a mark against ESTsoft.
Directory traversal vulnerability in the FTP client in ALTools ESTsoft ALFTP 4.1 beta 2 and 5.0 allows remote FTP servers to create or overwrite arbitrary files…
Unspecified vulnerability in ESTsoft InternetDISK versions before 2006/04/20 allows remote authenticated users to execute arbitrary code, possibly by uploading …
Stack-based buffer overflow in ESTsoft ALZip 8.51 and earlier allows remote attackers to execute arbitrary code via a crafted MS-DOS device file, as demonstrate…
ESTsoft ALUpdate 8.5.1.0.0 uses weak permissions (Users: Full Control) for the (1) AlUpdate folder and (2) AlUpdate.exe, which allows local users to gain privil…
UnEGG v0.5 and eariler versions have a Integer overflow vulnerability, triggered when the user opens a malformed specific file that is mishandled by UnEGG. Atta…
An integer overflow vulnerability exists in the way ESTsoft Alyac 2.5.8.544 parses OLE files. A specially-crafted OLE file can lead to a heap buffer overflow which can result in arbitrary code executi…
An integer overflow vulnerability exists in the way ESTsoft Alyac 2.5.8.544 parses OLE files. A specially-crafted OLE file can lead to a heap buffer overflow, which can result in arbitrary code execut…
An out of bounds read vulnerability exists in the malware scan functionality of ESTsoft Alyac 2.5.7.7. A specially-crafted PE file can trigger this vulnerability to cause denial of service and termina…
UnEGG v0.5 and eariler versions have a Integer overflow vulnerability, triggered when the user opens a malformed specific file that is mishandled by UnEGG. Attackers could exploit this and arbitrary c…
ESTsoft ALZip before 10.76 allows local users to execute arbitrary code via creating a malicious .DLL file and installing it in a specific directory: %PROGRAMFILES%\ESTsoft\ALZip\Formats, %PROGRAMFILE…
Stack-based buffer overflow in ESTsoft ALZip 8.51 and earlier allows remote attackers to execute arbitrary code via a crafted MS-DOS device file, as demonstrated by use of "AUX" as the initial substri…
ESTsoft ALUpdate 8.5.1.0.0 uses weak permissions (Users: Full Control) for the (1) AlUpdate folder and (2) AlUpdate.exe, which allows local users to gain privileges via a Trojan horse file.
Directory traversal vulnerability in the FTP client in ALTools ESTsoft ALFTP 4.1 beta 2 and 5.0 allows remote FTP servers to create or overwrite arbitrary files via a .. (dot dot) in a response to a L…
Unspecified vulnerability in ESTsoft InternetDISK versions before 2006/04/20 allows remote authenticated users to execute arbitrary code, possibly by uploading a file with multiple extensions into the…