What is CVE-2026-26120?

CVE-2026-26120 is a medium-severity vulnerability in Microsoft Bing, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.5/10. Published 2026-03-19.

How severe is CVE-2026-26120?

Medium severity. CVSS v3 base score is 6.5 out of 10.

SSRF in Microsoft Bing

CVE-2026-26120

Server-side request forgery (ssrf) in Microsoft Bing allows an unauthorized attacker to perform tampering over a network.

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.001 (25.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L/E:P/RL:O/RC:C.

Affected products

Microsoft Bing

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

Microsoft Bing Tampering Vulnerability (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-26120?: CVE-2026-26120 is a medium-severity vulnerability in Microsoft Bing, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.5/10. Published 2026-03-19.
How severe is CVE-2026-26120?: Medium severity. CVSS v3 base score is 6.5 out of 10.