8.8

CVE-2021-21127: google chrome

CVSS: 8.8v3.1HighModified
AliasesUBUNTU-CVE-2021-21127DEBIAN-CVE-2021-21127
Published 09-02-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-21127 is a high (CVSS 8.8) vulnerability in google chrome. EPSS estimates a 5.88% chance of exploitation in the next 30 days, higher than 93.1% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
46/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
5.88%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 10 · Related 8
DSA-4846-1MGASA-2021-0406OPENSUSE-SU-2021:0166-1OPENSUSE-SU-2021:0173-1OPENSUSE-SU-2021:0177-1OPENSUSE-SU-2021:0186-1

Timeline

  1. 09-02-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

Insufficient policy enforcement in extensions in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass content security policy via a crafted Chrome Extension.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

5.88%

Chance of exploitation in the next 30 days

Percentile

93%

Versus all other CVEs

30-day change

0.00 pp

From 5.88% on 20-09-2026

20-09-202620-10-2026
EPSS score
5.88%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (crbug.com)

    Maturity: unknown

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Debian1 product
  • chromium< 88.0.4324.96-0.1
Google1 product
  • chrome≥ unspecified, < 88.0.4324.96 | < 88.0.4324.96
Microsoft1 product
Ubuntu1 product
  • chromium-browser< 89.0.4389.82-0ubuntu0.16.04.1 | < 89.0.4389.82-0ubuntu0.18.04.1

4 vendors · 4 products

References

6 links