CVE-2025-59504: Azure Monitor Agent Remote Code Execution Vulnerability
CVE-2025-59504 is a remote code execution vulnerability in Azure Monitor Agent, rated Important by Microsoft, with a CVSS 3.1 base score of 7.3 (High). An attacker can exploit it by an attacker with local access, without any privileges and without user interaction. Microsoft has not reported exploitation in the wild and rates exploitation as unlikely. The EPSS model estimates a 0.35% probability of exploitation activity in the next 30 days, higher than 29% of all scored vulnerabilities. Microsoft released the fix on 11 November 2025 in the November 2025 Patch Tuesday. It affects 1 product in 1 product family (Azure).
Key facts
- CVE ID
- CVE-2025-59504
- Severity
- High CVSS 7.3
- Microsoft severity
- Important
- Impact
- Remote Code Execution
- Exploited in the wild
- No
- Publicly disclosed
- No
- Exploitation likelihood
- Unlikely
- Weakness
- CWE-122
- EPSS
- 0.35% (percentile 29%)
- CISA KEV
- Not listed
- Released
- Last updated
- Patch Tuesday
- November 2025 Patch Tuesday
- Product families
- Azure
CVSS score and vector
Microsoft scores CVE-2025-59504 at 7.3 (temporal 6.4) using CVSS 3.1. Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H/E:U/RL:O/RC:C
| Metric | Value |
|---|---|
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality impact | Low |
| Integrity impact | Low |
| Availability impact | High |
| Exploit code maturity | Unproven |
| Remediation level | Official fix |
| Report confidence | Confirmed |
Description
Heap-based buffer overflow in Azure Monitor Agent allows an unauthorized attacker to execute code locally.
Frequently asked questions (Microsoft)
How can I tell if this issue affects me, and what steps should I take to stay protected?
If you have Azure Monitor Agent extension version 1.37.0 or below you are affected. To protect your device, please upgrade to version 1.37.1 and above.
According to the CVSS metrics, successful exploitation of this vulnerability could lead to some loss of confidentiality (C:L) and integrity (I:L), and major loss of availability (A:H). What does that mean for this vulnerability?
This means for the vulnerability, while data exposure and tampering are possible, the most significant impact is on system availability—exploitation could crash processes or exhaust memory, disrupting log collection and monitoring services.
According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution?
The word Remote in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally. This means an attacker or victim needs to execute code from the local machine to exploit the vulnerability.
Affected products (1)
Azure
| Product | Security update | Type | Fixed build | Restart |
|---|---|---|---|---|
| Azure Monitor | Release Notes | Security Update | v1.37.1 | Maybe |
NIST NVD data
- NVD status
- Analyzed
- NVD CVSS
- 7.3 (HIGH)
- NVD weakness
- CWE-122
- Published to NVD
- NVD last modified
Affected configurations (CPE)
| Product | Vulnerable versions |
|---|---|
| azure monitor agent | before 1.37.1 |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59504 (Vendor Advisory)
Acknowledgments
- P1hcn
Revision history
| Version | Date | Description |
|---|---|---|
| 1.0 | Information published. |