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CVE-2024-21385

25
FAUCET Score

CVE-2024-21385 is an Elevation of Privilege vulnerability affecting Microsoft Edge (Chromium-based) browsers. With a CVSS score of 8.3 (HIGH), it allows an unauthenticated attacker to achieve high impact to confidentiality, integrity, and availability through a network-based attack requiring user interaction and high attack complexity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 121.0.2277.83CPE matchmatch criteria
cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.3HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.6
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.96%
Probability of exploitation in next 30 days
EPSS Percentile
58.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0096 is in the 44th percentile among its peer group of 1,572 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.4 Bluesky, 0.2 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.6 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Microsoft Edge (Chromium-based)Fixed in: 121.0.2277.83

Vendor Advisories (1)

microsoft2024-Jan/CVE-2024-21385Important

Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability

Jan 9, 2024

References

msrc.microsoft.com / update-guide/vulnerability/CVE-2024-21385
PatchVendor Advisory