Azure Access BLU-IC2/BLU-IC4 up to 1.19.5 Slowloris denial of service
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.4 | $0-$5k | 0.00 |
Summary
A vulnerability marked as problematic has been reported in Azure Access BLU-IC2 and BLU-IC4 up to 1.19.5. Affected is an unknown function. This manipulation causes denial of service. This vulnerability is handled as CVE-2025-12601. The attack can be initiated remotely. There is not any exploit available.
Details
A vulnerability was found in Azure Access BLU-IC2 and BLU-IC4 up to 1.19.5. It has been declared as problematic. Affected by this vulnerability is an unknown code. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:
Denial of Service Due to SlowLoris.This issue affects BLU-IC2: through 1.19.5; BLU-IC4: through 1.19.5.
The weakness was released by Kevin Schaller, Benjamin Lafois, Alexi Bitsios, Sebastian Toscano and Dominik Schneider. The advisory is shared at azure-access.com. This vulnerability is known as CVE-2025-12601 since 11/01/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-37434). If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Product
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 6.4VulDB Meta Temp Score: 6.4
VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Denial of serviceCWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
11/01/2025 CVE reserved11/02/2025 Advisory disclosed
11/02/2025 VulDB entry created
11/11/2025 VulDB entry last update
Sources
Advisory: azure-access.comResearcher: Kevin Schaller, Benjamin Lafois, Alexi Bitsios, Sebastian Toscano, Dominik Schneider
Status: Confirmed
CVE: CVE-2025-12601 (🔒)
GCVE (CVE): GCVE-0-2025-12601
GCVE (VulDB): GCVE-100-330901
EUVD: 🔒
Entry
Created: 11/02/2025 07:25Updated: 11/11/2025 04:29
Changes: 11/02/2025 07:25 (66), 11/02/2025 12:01 (1), 11/11/2025 04:29 (11)
Complete: 🔍
Cache ID: 216::103
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
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