What is CVE-2024-38183?

CVE-2024-38183 is a critical-severity vulnerability in Microsoft Groupme, classified under Server-Side Request Forgery (SSRF). CVSS score: 9.8/10. Published 2024-09-17.

How severe is CVE-2024-38183?

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

SSRF in Microsoft Groupme

CVE-2024-38183

An improper access control vulnerability in GroupMe allows an a unauthenticated attacker to elevate privileges over a network.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2024-09-17 · last modified 2026-08-10.

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: 0.008 (54.5th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.5% 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: 0.008 · change: 0.000

Affected products

Microsoft Groupme

Weakness classification (CWE)

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

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38183 (vendor-advisory, Patch, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2024-38183?: CVE-2024-38183 is a critical-severity vulnerability in Microsoft Groupme, classified under Server-Side Request Forgery (SSRF). CVSS score: 9.8/10. Published 2024-09-17.
How severe is CVE-2024-38183?: Critical severity. CVSS v3 base score is 9.8 out of 10.