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CVE-2025-14957

20
FAUCET Score

CVE-2025-14957 is a null pointer dereference vulnerability in WebAssembly Binaryen versions up to 125, specifically within the IRBuilder component's makeLocalGet/makeLocalSet/makeLocalTee functions. This medium-severity vulnerability (CVSS 5.5) requires local access and could lead to a denial of service (high availability impact). While an exploit is publicly available, there is no evidence of active exploitation, and it has received minimal community discussion or media coverage. A patch (6fb2b917a79578ab44cf3b900a6da4c27251e0d4) is available to remediate this issue.

Impacted Technologies

VendorProductVersion(s)CPE
<= 125CPE matchmatch criteria
cpe:2.3:a:webassembly:binaryen:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

1.9LOW

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.19%
Probability of exploitation in next 30 days
EPSS Percentile
8.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0019 is in the 43rd percentile among its peer group of 15,938 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / oneafter/1204/blob/main/af1
Not Applicable
github.com / WebAssembly/binaryen
github.com / WebAssembly/binaryen/commit/6fb2b917a79578ab44cf3b900a6da4c27251e0d4
Patch
github.com / WebAssembly/binaryen/issues/8090
ExploitIssue TrackingThird Party Advisory
github.com / WebAssembly/binaryen/pull/8099
Issue Tracking
vuldb.com
Permissions RequiredVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry