8.6

CVE-2021-21138: google chrome Use After Free

CVSS: 8.6v3.1HighModified
AliasesUBUNTU-CVE-2021-21138DEBIAN-CVE-2021-21138
Published 09-02-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-21138 is a high (CVSS 8.6) Use After Free vulnerability in google chrome. EPSS estimates a 0.51% chance of exploitation in the next 30 days, higher than 42.3% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.6/10
010
High · v3.1 (NVD)
EPSS score
0.51%
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 7 · Related 6
DSA-4846-1OPENSUSE-SU-2021:0166-1OPENSUSE-SU-2021:0173-1OPENSUSE-SU-2021:0177-1OPENSUSE-SU-2021:0186-1OPENSUSE-SU-2024:10681-1

Timeline

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

Description

Use after free in DevTools in Google Chrome prior to 88.0.4324.96 allowed a local attacker to potentially perform a sandbox escape via a crafted file.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.51%

Chance of exploitation in the next 30 days

Percentile

42%

Versus all other CVEs

30-day change

0.00 pp

From 0.51% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.51%

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

3 vendors · 3 products

References

5 links