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)

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

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.

EPSS exploit prediction

EPSS: 0.008 (54.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.008 · change: +0.002

Affected products

Weakness classification (CWE)

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

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26120 (vendor-advisory, patch, Vendor Advisory)

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.