Skip to content
Noroxi
NVD / CVE Program· CNA Chrome

CVE-2021-37980: Inappropriate implementation in Sandbox in Google Chrome prior to 94.0.4606.81 allowed a remote attacker to potentially bypass site…

HighCVSS 7.4 · v3.1—Proof of concept Fix available

Noroxi assessment

Priority: Monitor (action score 29/100)

  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 1.4% (FIRST EPSS); higher than 73.9% of all records.
  • Anyone who can reach it over the internet 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: qt5-qtwebengine (Alpine:v3.14) 5.15.3_git20211006-r1; qt5-qtwebengine (Alpine:v3.15) 5.15.3_git20211006-r3; chromium (Debian:12) 97.0.4692.71-0.1.

Low priority for now. Upgrade to qt5-qtwebengine (Alpine:v3.14) 5.15.3_git20211006-r1; qt5-qtwebengine (Alpine:v3.15) 5.15.3_git20211006-r3; chromium (Debian:12) 97.0.4692.71-0.1 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 Sandbox in Google Chrome prior to 94.0.4606.81 allowed a remote attacker to potentially bypass site isolation via Windows.

Published
Nov 2, 2021
Updated
Jun 17, 2026
EPSS
1.4% · 73th percentile
CWE
—

Report tools

JSON

Action score

29

Monitor

Low priority for now.

CVSS
29 / 40 · 7.4 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.4%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2021-37980

When you'll hear from us

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

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits every 10 minutes on paid plans, on the hour on the free plan.

Your free account also gets you

  • CVE alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools, at most 30 a day (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for google records
Is your version affected? Check it

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.

We use this product, ask for help

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
microsoftwindows
fedoraprojectfedora
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 94.0.4606.81affected
Affected versions · NVD (4)

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
  • fedoraproject fedora33
  • google chromebefore 94.0.4606.81

Package-level exposure

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

EcosystemPackageAffected rangeFix
Alpine:v3.14qt5-qtwebenginebefore 5.15.3_git20211006-r15.15.3_git20211006-r1
Alpine:v3.15qt5-qtwebenginebefore 5.15.3_git20211006-r35.15.3_git20211006-r3
Debian:12chromiumbefore 97.0.4692.71-0.197.0.4692.71-0.1
openSUSE:Leap 15.2 NonFreeoperabefore 80.0.4170.63-lp152.2.73.180.0.4170.63-lp152.2.73.1
openSUSE:Leap 15.3 NonFreeoperabefore 80.0.4170.63-lp153.2.27.180.0.4170.63-lp153.2.27.1
openSUSE:Leap 15.3 NonFreeoperabefore 83.0.4254.27-lp153.2.33.183.0.4254.27-lp153.2.33.1
openSUSE:Tumbleweedchromiumbefore 94.0.4606.81-1.194.0.4606.81-1.1

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-2021-37978Nov 2, 2021 · Heap buffer overflow in Blink in Google Chrome prior to 94.0.4606.81 allowed a remote attacker to potentially exploit heap corruption via a…
    35Monitor
  • ← EarlierCVE-2021-37979Nov 2, 2021 · heap buffer overflow in WebRTC in Google Chrome prior to 94.0.4606.81 allowed a remote attacker who convinced a user to browse to a…
    36Monitor
  • Later →CVE-2021-37981Nov 2, 2021 · Heap buffer overflow in Skia in Google Chrome prior to 95.0.4638.54 allowed a remote attacker who had compromised the renderer process to…
    38Monitor

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
alpine:qt5-qtwebengine5.15.3_git20211006-r1 · Alpine:v3.14Package registry (OSV)
debian:chromium97.0.4692.71-0.1 · Debian:12Package registry (OSV)
opensuse:chromium94.0.4606.81-1.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:opera80.0.4170.63-lp152.2.73.1 · openSUSE:Leap 15.2 NonFreePackage registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:702021-10-12

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.

  1. First PoC-22 d
  2. Published
  3. TodayNov 12, 2026+1836 d

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

  • Anyone who can reach it over the internet 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

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Changed
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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 (3 more)

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

All records