2.4

CVE-2021-1755: apple macos Missing Authorization

CVSS: 2.4v3.1LowModified
Published 02-04-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-1755 is a low (CVSS 2.4) Missing Authorization vulnerability in apple macos. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 18.6% of scored vulnerabilities.

Overall risk
10/100
0100
Low · default modelHow is this calculated?
CVSS score
2.4/10
010
Low · v3.1 (NVD)
EPSS score
0.27%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 02-04-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

A lock screen issue allowed access to contacts on a locked device. This issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.0.1. A person with physical access to an iOS device may be able to access contacts from the lock screen.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

19%

Versus all other CVEs

30-day change

0.00 pp

From 0.27% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.27%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Apple1 product
  • macos≥ unspecified, < 11.0 | < 11.0.1

1 vendor · 1 product

References

1 links