7.4

CVE-2021-21198: fedoraproject fedora Out-of-bounds Read

CVSS: 7.4v3.1HighModified
AliasesUBUNTU-CVE-2021-21198DEBIAN-CVE-2021-21198
Published 09-04-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-21198 is a high (CVSS 7.4) Out-of-bounds Read vulnerability in fedoraproject fedora. EPSS estimates a 1.79% chance of exploitation in the next 30 days, higher than 78.1% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.4/10
010
High · v3.1 (NVD)
EPSS score
1.79%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 6 · Related 5
DSA-4886-1OPENSUSE-SU-2021:0513-1OPENSUSE-SU-2021:0515-1OPENSUSE-SU-2021:0592-1OPENSUSE-SU-2024:10681-1OPENSUSE-SU-2024:12948-1

Timeline

  1. 09-04-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

Out of bounds read in IPC in Google Chrome prior to 89.0.4389.114 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.79%

Chance of exploitation in the next 30 days

Percentile

78%

Versus all other CVEs

30-day change

0.00 pp

From 1.79% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.79%

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

Debian1 product
  • chromium< 89.0.4389.114-1
Fedoraproject1 product
Google1 product
  • chrome≥ unspecified, < 89.0.4389.114 | < 89.0.4389.114
Ubuntu1 product
  • chromium-browser< 90.0.4430.72-0ubuntu0.16.04.1 | < 90.0.4430.72-0ubuntu0.18.04.1

4 vendors · 4 products

References

10 links