Microsoft Windows up to Server 2025 Event Tracing use after free
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.8 | $5k-$25k | 0.00 |
Summary
A vulnerability, which was classified as critical, has been found in Microsoft Windows. Affected by this vulnerability is an unknown functionality of the component Event Tracing. The manipulation leads to use after free. This vulnerability is documented as CVE-2025-49660. The attack needs to be performed locally. There is not any exploit available. To fix this issue, it is recommended to deploy a patch. If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Details
A vulnerability was found in Microsoft Windows and classified as critical. This issue affects an unknown functionality of the component Event Tracing. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability.
The weakness was released 07/08/2025 as confirmed security update guide (Website). It is possible to read the advisory at msrc.microsoft.com. The identification of this vulnerability is CVE-2025-49660. The exploitation is known to be easy. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 08/16/2025).
Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the databases at EUVD (EUVD-2025-20582) and CERT Bund (WID-SEC-2025-1850). If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Affected
- Xerox FreeFlow Print Server
Product
Type
Vendor
Name
Version
- 10
- 10 21H2
- 10 22H2
- 10 1607
- 10 1809
- 11 22H2
- 11 23H2
- 11 24H2
- Server 2012 R2
- Server 2016
- Server 2019
- Server 2022
- Server 2022 23H2
- Server 2025
License
Website
- Vendor: https://www.microsoft.com/
- Product: https://www.microsoft.com/en-us/windows
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.8VulDB Meta Temp Score: 6.8
VulDB Base Score: 7.8
VulDB Temp Score: 6.8
VulDB Vector: 🔒
VulDB Reliability: 🔍
Vendor Base Score (Microsoft): 7.8
Vendor Vector (Microsoft): 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Use after freeCWE: CWE-416 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒
Physical: Partially
Local: Yes
Remote: No
Availability: 🔒
Status: Unproven
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
Reaction Time: 🔒
0-Day Time: 🔒
Exposure Time: 🔒
Timeline
07/08/2025 VulDB entry created07/08/2025 Advisory disclosed
07/08/2025 Countermeasure disclosed
08/16/2025 VulDB entry last update
Sources
Vendor: microsoft.comProduct: microsoft.com
Advisory: msrc.microsoft.com
Status: Confirmed
CVE: CVE-2025-49660 (🔒)
GCVE (CVE): GCVE-0-2025-49660
GCVE (VulDB): GCVE-100-315491
EUVD: 🔒
CERT Bund: WID-SEC-2025-1850 - Xerox FreeFlow Print Server: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff
scip Labs: https://www.scip.ch/en/?labs.20161215
Entry
Created: 07/08/2025 07:30 PMUpdated: 08/16/2025 09:33 PM
Changes: 07/08/2025 07:30 PM (18), 07/08/2025 07:31 PM (17), 07/08/2025 07:34 PM (34), 07/09/2025 08:55 AM (1), 08/16/2025 09:33 PM (7)
Complete: 🔍
Cache ID: 18:C09:40
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