What is CVE-2023-38158?

CVE-2023-38158 is a low-severity vulnerability in Microsoft Edge Chromium, classified under Information Disclosure. CVSS score: 3.1/10. Published 2023-08-21.

How severe is CVE-2023-38158?

Low severity. CVSS v3 base score is 3.1 out of 10.

Information disclosure in Microsoft Edge Chromium

CVE-2023-38158

Microsoft Edge (Chromium-based) Information Disclosure Vulnerability

Vulnerability class: Information Disclosure

Published 2023-08-21 · last modified 2026-08-10.

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.013 (70.4th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Microsoft Edge Chromium
Microsoft Edge (Chromium-Based) — versions 1.0.0, 1.0.0.0

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38158 (vendor-advisory, Patch, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-38158?: CVE-2023-38158 is a low-severity vulnerability in Microsoft Edge Chromium, classified under Information Disclosure. CVSS score: 3.1/10. Published 2023-08-21.
How severe is CVE-2023-38158?: Low severity. CVSS v3 base score is 3.1 out of 10.