CVE-2026-118131: CVE-2026-118131
CVE-2026-118131 is a vulnerability in CVE-2026-118131, rated Moderate by Microsoft, with a CVSS 3.1 base score of 5.3 (Medium). An attacker can exploit it remotely over the network, without any privileges and without user interaction. Microsoft has not reported exploitation in the wild. The EPSS model estimates a 0.19% probability of exploitation activity in the next 30 days, higher than 8% of all scored vulnerabilities. Microsoft released the fix on 31 October 2026, outside Patch Tuesday. It affects 1 product in 1 product family (Open Source Software).
Key facts
- CVE ID
- CVE-2026-118131
- Severity
- Medium CVSS 5.3
- Microsoft severity
- Moderate
- Exploited in the wild
- No
- Publicly disclosed
- No
- EPSS
- 0.19% (percentile 8%)
- CISA KEV
- Not listed
- Released
- Last updated
- Patch Tuesday
- October 2026 Patch Tuesday
- Product families
- Open Source Software
CVSS score and vector
Microsoft scores CVE-2026-118131 at 5.3 (temporal 5.3) using CVSS 3.1. Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
| Metric | Value |
|---|---|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality impact | None |
| Integrity impact | None |
| Availability impact | Low |
Affected products (1)
Open Source Software
| Product | Security update | Type | Fixed build | Restart |
|---|---|---|---|---|
| azl3 gnupg2 2.4.9-3 on Azure Linux 3.0 | Release Notes | Security Update |
NIST NVD data
- NVD status
- Awaiting Analysis
- Published to NVD
- NVD last modified
References
Revision history
| Version | Date | Description |
|---|---|---|
| 1.0 | Information published. |