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CVE-2022-37617

29
FAUCET Score

CVE-2022-37617 is a critical prototype pollution vulnerability affecting the thlorenz browserify-shim project, specifically in the resolveShims function within resolve-shims.js. With a CVSS score of 9.8, this vulnerability allows unauthenticated attackers to achieve high impact on confidentiality, integrity, and availability over the network with low attack complexity. While there is no known active exploitation, public exploit code, or inclusion in the KEV catalog, the vulnerability has garnered significant community discussion with 10 mentions, indicating awareness. Organizations using browserify-shim 3.8.15 or earlier should prioritize patching to mitigate this severe risk.

Impacted Technologies

VendorProductVersion(s)CPE
3.8.15CPE matchmatch criteria
cpe:2.3:a:browserify-shim_project:browserify-shim:3.8.15:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.19%
Probability of exploitation in next 30 days
EPSS Percentile
64.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0119 is in the 50th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

npmpatch availablevia ghsa
Product: browserify-shimFixed in: 3.8.16

Vendor Advisories (1)

npmGHSA-866w-wm4h-95c6critical

thlorenz browserify-shim vulnerable to prototype pollution

Oct 12, 2022

References

github.com / thlorenz/browserify-shim/blob/464b32bbe142664cd9796059798f6c738ea3de8f/lib/resolve-shims.js
ExploitThird Party Advisory
github.com / thlorenz/browserify-shim/blob/464b32bbe142664cd9796059798f6c738ea3de8f/lib/resolve-shims.js
ExploitThird Party Advisory
github.com / thlorenz/browserify-shim/issues/245
Issue Tracking