CVE-2025-30406
CVE-2025-30406 is a security flaw in Gladinet CentreStack, software companies use to send and receive files. Attackers can run their own code on Gladinet CentreStack. The US Cybersecurity and Infrastructure Security Agency (CISA) added it to its catalog of flaws known to be used in attacks on 8 Apr 2025.[1]
Gladinet CentreStack is business software or equipment. Most families won’t have it, but attackers break into it to get inside companies, and from there to what those companies hold about their customers, patients and staff. Fixed in version 16.4.10315.56368 of CentreStack.
Description
CISA calls it an and triofox use of hard-coded cryptographic key in Gladinet CentreStack. In its words: “Gladinet CentreStack and Triofox contains a use of hard-coded cryptographic key vulnerability in the way that the application manages keys used for ViewState integrity verification. Successful exploitation allows an attacker to forge ViewState payloads for server-side deserialization, allowing for remote code execution.”[1]
The CVE record adds: “Gladinet CentreStack through 16.1.10296.56315 (fixed in 16.4.10315.56368) has a deserialization vulnerability due to the CentreStack portal's hardcoded machineKey use, as exploited in the wild in March 2025. This enables threat actors (who know the machineKey) to serialize a payload for server-side deserialization to achieve remote code execution. NOTE: a CentreStack admin can manually delete the machineKey defined in portal\web.config.”[2]
The underlying weakness is CWE-321, in MITRE’s list of common software weaknesses.
It scores 9.8 out of 10 on the Common Vulnerability Scoring System, which rates it critical, scored by NVD using CVSS 3.1.[2]
Affected versions
NVD’s record lists one fixed version: everything before it is affected.[2]
| Product | Fixed in |
|---|---|
| CentreStack | 16.4.10315.56368 |
Most families won’t have Gladinet CentreStack; it’s for whoever looks after IT at work.
Exploitation
CISA added it to its catalog of known exploited vulnerabilities on 8 Apr 2025, 5 days after it was made public. CISA lists a flaw only when it has reliable evidence of it being exploited, and gave US federal agencies until 29 Apr 2025 to fix it.[1]
FIRST’s Exploit Prediction Scoring System, which estimates how likely a flaw is to be used in attacks in the next 30 days from what it sees across the internet, puts it at 94%. That’s in the top 1% of the flaws it scores.[4]
CISA assesses it as not automatable: each attack takes some work.
CISA doesn’t say who was attacked, or how.
Fix
Gladinet has published a fix or advice.[3] CISA’s 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.”[1]
- Check whether you use it.Gladinet CentreStack is business software or equipment, so most families won’t have it. If you run a business, or work from home on company equipment, ask whoever looks after your IT.
- Send this page to your IT person.Ask them to confirm it’s fixed (fixed in version 16.4.10315.56368 of CentreStack), or not in use. CISA gave US government agencies until 29 Apr 2025 to fix it.
- If it can’t be fixed, take it offline.CISA’s advice when there’s no fix is to stop using the product, or take it off the internet, until there is one.
You can’t fix someone else’s server, but you can watch for what follows a break-in like this: a breach notice, a password reset you didn’t ask for, or a scam message that knows things it shouldn’t. HARD watches for those for you and your family.
Timeline
| Date | Event |
|---|---|
| The flaw is made public in the National Vulnerability Database, with a severity score of 9.8.[2] | |
| CISA adds it to its catalog of flaws known to be used in attacks.[1] | |
| CISA’s deadline for US government agencies to fix it.[1] | |
| FIRST puts the odds of it being used in attacks in the next 30 days at 94%.[4] |
See also
Other Gladinet flaws
- CVE-2025-14611, Gladinet CentreStack and Triofox: hard coded cryptographic ·
- CVE-2025-12480, Gladinet Triofox: improper access control ·
- CVE-2025-11371, Gladinet CentreStack and Triofox: files or directories accessible to external parties ·
Added the same day
- CVE-2025-29824, Microsoft Windows: common log file system (CLFS) driver use-after-free ·
Every Gladinet flaw on CISA’s list · Everything added in April 2025
References
- ^ Cybersecurity and Infrastructure Security Agency. “Gladinet CentreStack and Triofox Use of Hard-coded Cryptographic Key Vulnerability”. Known Exploited Vulnerabilities Catalog, added 8 Apr 2025.
- ^ National Institute of Standards and Technology. “CVE-2025-30406 Detail”. National Vulnerability Database, published 3 Apr 2025.
- ^ Gladinet. Advisories and fixes: gladinetsupport.s3.us-east-1.amazonaws.com, gladinetsupport.s3.us-east-1.amazonaws.com, centrestack.com.
- ^ FIRST. “Exploit Prediction Scoring System”. EPSS 0.943, percentile 99.9, 31 Oct 2026.
- CVE Program. “CVE-2025-30406”. The official CVE record.
This article is built from CISA’s catalog (version 2026.10.30), NVD’s record and FIRST’s scores, kept in HARD’s database and checked every morning. The plain English is HARD’s.