What is CVE-2026-32191?

CVE-2026-32191 is a critical-severity vulnerability in Microsoft Bing Images, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-03-19.

How severe is CVE-2026-32191?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Microsoft Bing Images

CVE-2026-32191

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.

Vulnerability class: Command Injection (OS Command Injection)

Published 2026-03-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.011 (63.1th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.011 · change: +0.003

Affected products

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32191 (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-32191?: CVE-2026-32191 is a critical-severity vulnerability in Microsoft Bing Images, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-03-19.
How severe is CVE-2026-32191?: Critical severity. CVSS v3 base score is 9.8 out of 10.