9.1

CVE-2024-42220: microsoft outlook

Analyzed
Published 18-12-2024Last modified 19-12-2024

Vulnerability summary

CVE-2024-42220 is a critical (CVSS 9.1) vulnerability in microsoft outlook. EPSS estimates a 0.74% chance of exploitation in the next 30 days, higher than 54.1% of scored vulnerabilities. 2 public exploits are recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.1/10
010
Critical · v3.1 (NVD)
EPSS score
0.74%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits2reference

Timeline

  1. 18-12-2024
    PublishedVulnerability first disclosed.
  2. 19-12-2024
    Last modifiedVulnerability information updated.

Description

A library injection vulnerability exists in Microsoft Outlook 16.83.3 for macOS. A specially crafted library can leverage Outlook's access privileges, leading to a permission bypass. A malicious application could inject a library and start the program to trigger this vulnerability and then make use of the vulnerable application's permissions.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.74%

Chance of exploitation in the next 30 days

Percentile

54%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.74% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (talosintelligence.com)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (talosintelligence.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Microsoft1 product

1 vendor · 1 product

References

2 links