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ExploitedIn CISA KEVFix available

CVE-2021-38000

Exploitation confirmed. First attested on 2021-11-03 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2021-11-23
  • WeaknessCWE-20 · CWE-601

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Insufficient validation of untrusted input in Intents in Google Chrome on Android prior to 95.0.4638.69 allowed a remote attacker to arbitrarily browser to a malicious URL via a crafted HTML page.

Timeline

dates in UTC
  1. 2021-11-03Added to the CISA KEV catalogCISA KEV
  2. 2021-11-03Listed as exploited by GCVEGCVE
  3. 2021-11-03Exploitation first reportedCISA KEV
  4. 2021-11-2322:15CVE publishedNVD
  5. 2024-05-1519:42SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-11-04 09:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-38000?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-38000?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · CISA-ADP
Debian debian linux
BranchAffectedFixed in
10.0= 10.0no fix published
11.0= 11.0no fix published
Fedoraproject fedora
BranchAffectedFixed in
34.x= 34no fix published
Google android
BranchAffectedFixed in
—all versionsno fix published

1 more product in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As Chrome, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Google Chrome
    Affected
    • < 95.0.4638.69fixed in 95.0.4638.69custom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2022-01-15

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • chromiumSUSE:Package Hub 15 SP3all versions · fixed in 95.0.4638.69-bp153.2.40.3
  • chromiumopenSUSE:Tumbleweedall versions · fixed in 95.0.4638.69-1.1
  • chromiumopenSUSE:Tumbleweedall versions · fixed in 113.0.5672.92-1.1
  • chromiumopenSUSE:Leap 15.3all versions · fixed in 95.0.4638.69-bp153.2.40.3
  • chromiumopenSUSE:Leap 15.2all versions · fixed in 95.0.4638.69-bp153.2.40.3
  • chromiumDebian:14all versions · fixed in 97.0.4692.71-0.1
  • chromiumDebian:13all versions · fixed in 97.0.4692.71-0.1
  • chromiumDebian:12all versions · fixed in 97.0.4692.71-0.1

2 more package ranges on OSV.dev

Vendor advisories

  • CVE-2021-38000 Red Hat Product Security

    chromium-browser: Insufficient validation of untrusted input in Intents

Full record on NVD

Fix

  1. CISA’s required action: Apply updates per vendor instructions.due 2021-11-17

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2021-11-03
Patch Due Date
2021-11-17
Ransomware Use
Unknown
Required Action
Apply updates per vendor instructions.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Published
2021-11-23
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-xrj7-4gfh-q9h7

Frequently asked questions

What is CVE-2021-38000?

Insufficient validation of untrusted input in Intents in Google Chrome on Android prior to 95.0.4638.69 allowed a remote attacker to arbitrarily browser to a malicious URL via a crafted HTML page.

Is CVE-2021-38000 actively exploited?

Yes. CVE-2021-38000 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2021-11-17.

What is the CVSS score for CVE-2021-38000?

CVE-2021-38000 has a CVSS v3 base score of 6.1 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

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Sources for this record