CVE-2026-32191

Published Mar 19, 2026

Last updated 3 months ago

Overview

AI description

Automated description summarized from trusted sources.

CVE-2026-32191 is an OS command injection vulnerability found in Microsoft Bing Images. This flaw allows an unauthorized attacker to execute arbitrary code over a network. The vulnerability stems from the improper neutralization of special elements used in OS commands, specifically CWE-78, which enables attackers to inject malicious commands into system shells. This occurs when user-controlled input is passed unsanitized to system command execution functions within Microsoft Bing Images. The vulnerability was discovered by XBOW's autonomous offensive security system, which identified that a crafted SVG submitted to Bing's image search could run commands as NT AUTHORITY\SYSTEM on Microsoft's production image-processing workers. Microsoft has since released a security update and fully mitigated this vulnerability for cloud service users, with no customer action required.

Description: Improper neutralization of special elements used in an os command ('os command injection') in Microsoft Bing Images allows an unauthorized attacker to execute code over a network.
Source: secure@microsoft.com
NVD status: Analyzed
CNA Tags: exclusively-hosted-service
Products: bing_images

Risk scores

CVSS 3.1

Type: Primary
Base score: 9.8
Impact score: 5.9
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: CRITICAL

Weaknesses

secure@microsoft.com: CWE-78

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:microsoft:bing_images:-:*:*:*:*:*:*:*",
            "matchCriteriaId": "5B3D4053-7DAF-4AB9-86E8-33D45C8EF86B",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ]
  }
]

Improper neutralization of special elements used in a command ('command injection') in Microsoft Bing Images allows an unauthorized attacker to execute code over a network.•CVE-2026-32194

References

Sources include official advisories and independent security research.