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NVD / CVE Program· CNA Chrome

CVE-2021-37990: Inappropriate implementation in WebView in Google Chrome on Android prior to 95.0.4638.54 allowed a remote attacker to leak cross-origin…

MediumCVSS 5.5 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.60% (FIRST EPSS).
  • Someone with local access to the system can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: chromium (Debian:12) 97.0.4692.71-0.1; chromium (openSUSE:Leap 15.2) 95.0.4638.54-lp152.2.135.1; opera (openSUSE:Leap 15.2 NonFree) 81.0.4196.31-lp152.2.76.1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to chromium (Debian:12) 97.0.4692.71-0.1; chromium (openSUSE:Leap 15.2) 95.0.4638.54-lp152.2.135.1; opera (openSUSE:Leap 15.2 NonFree) 81.0.4196.31-lp152.2.76.1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Inappropriate implementation in WebView in Google Chrome on Android prior to 95.0.4638.54 allowed a remote attacker to leak cross-origin data via a crafted app.

Published
Nov 2, 2021
Updated
Jun 17, 2026
EPSS
0.6% · 49th percentile
CWE
—

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.6%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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When you'll hear from us

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  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
googlechrome
debiandebian linux

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Chrome). Independent of NVD's CPE analysis and usually ahead of it.

  • Google Chrome

    • unspecified and later · before 95.0.4638.54affected

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • debian debian linux10.0
  • debian debian linux11.0
  • google chromebefore 95.0.4638.54

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12chromiumbefore 97.0.4692.71-0.197.0.4692.71-0.1
openSUSE:Leap 15.2chromiumbefore 95.0.4638.54-lp152.2.135.195.0.4638.54-lp152.2.135.1
openSUSE:Leap 15.2 NonFreeoperabefore 81.0.4196.31-lp152.2.76.181.0.4196.31-lp152.2.76.1
openSUSE:Leap 15.3chromiumbefore 95.0.4638.54-bp153.2.37.195.0.4638.54-bp153.2.37.1
openSUSE:Leap 15.3 NonFreeoperabefore 81.0.4196.31-lp153.2.30.181.0.4196.31-lp153.2.30.1
openSUSE:Tumbleweedchromiumbefore 95.0.4638.54-1.195.0.4638.54-1.1
SUSE:Package Hub 15 SP3chromiumbefore 95.0.4638.54-bp153.2.37.195.0.4638.54-bp153.2.37.1

Same product

google: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-4863Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of…KEV
    95Now
  • CVE-2021-21224Type confusion in V8 in Google Chrome prior to 90.0.4430.85 allowed a remote attacker to execute arbitrary code inside a sandbox via a…KEV
    90Now
  • CVE-2018-17463Incorrect side effect annotation in V8 in Google Chrome prior to 70.0.3538.64 allowed a remote attacker to execute arbitrary code inside a…KEV
    90Now

Published before and after this one in the same product

  • ← EarlierCVE-2021-37988Nov 2, 2021 · Use after free in Profiles in Google Chrome prior to 95.0.4638.54 allowed a remote attacker who convinced a user to engage in specific…
    35Monitor
  • ← EarlierCVE-2021-37989Nov 2, 2021 · Inappropriate implementation in Blink in Google Chrome prior to 95.0.4638.54 allowed a remote attacker to abuse content security policy via…
    26Monitor
  • Later →CVE-2021-37991Nov 2, 2021 · Race in V8 in Google Chrome prior to 95.0.4638.54 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
    30Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:chromium97.0.4692.71-0.1 · Debian:12Package registry (OSV)
opensuse:chromium95.0.4638.54-bp153.2.37.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:opera81.0.4196.31-lp152.2.76.1 · openSUSE:Leap 15.2 NonFreePackage registry (OSV)
suse:chromium95.0.4638.54-bp153.2.37.1 · SUSE:Package Hub 15 SP3Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none
Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records