HOME VULNERABILITIESCVE-2022-37621

CRITICAL

CVE-2022-37621

CWE-1321Published: October 28, 2022· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Prototype pollution vulnerability in function resolveShims in resolve-shims.js in thlorenz browserify-shim 3.8.15 via the fullPath variable in resolve-shims.js.

Risk Analysis

Browserify-shim 3.8.15 is affected by a prototype pollution vulnerability in its resolve-shims function. This critical flaw could allow an attacker to manipulate application logic remotely.

There is no public exploit known, and it is not in the KEV catalog. The vulnerability is remotely exploitable.

Recommended Action

Update browserify-shim to a version where this prototype pollution vulnerability is mitigated.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2022-37621 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected Vendors & Products

browserify-shim_project1 product(s)

browserify-shim

Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://github.com/thlorenz/browserify-shim/blob/464b32bbe142664cd9796059798f6c738ea3de8f/lib/resolve-shims.js#L158

ADVISORYhttps://github.com/thlorenz/browserify-shim/blob/464b32bbe142664cd9796059798f6c738ea3de8f/lib/resolve-shims.js#L37

ADVISORYhttps://github.com/thlorenz/browserify-shim/issues/247

ADVISORYhttps://github.com/thlorenz/browserify-shim/blob/464b32bbe142664cd9796059798f6c738ea3de8f/lib/resolve-shims.js#L158

ADVISORYhttps://github.com/thlorenz/browserify-shim/blob/464b32bbe142664cd9796059798f6c738ea3de8f/lib/resolve-shims.js#L37

ADVISORYhttps://github.com/thlorenz/browserify-shim/issues/247

All References (6)

→

https://github.com/thlorenz/browserify-shim/blob/464b32bbe142664cd9796059798f6c738ea3de8f/lib/resolve-shims.js#L158Third Party Advisory

→

https://github.com/thlorenz/browserify-shim/blob/464b32bbe142664cd9796059798f6c738ea3de8f/lib/resolve-shims.js#L37Third Party Advisory

→

https://github.com/thlorenz/browserify-shim/issues/247Issue Tracking · Third Party Advisory

→

https://github.com/thlorenz/browserify-shim/blob/464b32bbe142664cd9796059798f6c738ea3de8f/lib/resolve-shims.js#L158Third Party Advisory

→

https://github.com/thlorenz/browserify-shim/blob/464b32bbe142664cd9796059798f6c738ea3de8f/lib/resolve-shims.js#L37Third Party Advisory

→

https://github.com/thlorenz/browserify-shim/issues/247Issue Tracking · Third Party Advisory

Quick Facts

CVE IDCVE-2022-37621

CVSS Score9.8 / 10

SeverityCRITICAL

WeaknessCWE-1321

CISA KEVNo

Affected1 vendor(s)

PublishedOct 28, 2022

Related CVEs (CWE-1321)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2022-37621 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.

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