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CVE-2025-6274

14
FAUCET Score

CVE-2025-6274 describes a resource consumption vulnerability in WebAssembly wabt versions up to 1.0.37, specifically within the OnDataCount function of src/interp/binary-reader-interp.cc. This issue, classified as problematic, requires local access for exploitation. With a low CVSS score of 3.3, the vulnerability primarily impacts availability, potentially leading to denial of service. While publicly disclosed, there is no evidence of active exploitation, readily available exploit code, or significant community discussion, and its real-world impact is debated by maintainers.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.0.37CPE matchmatch criteria
cpe:2.3:a:webassembly:wabt:*:*:*:*:*:*:*:*

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
8.8%
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 46th percentile among its peer group of 1,509 CVEs.

Social Chatter

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

Remediation

Vendor Patches (7)

redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 10Fixed in: firefox
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 10Fixed in: thunderbird
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: firefox
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: firefox
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: thunderbird
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: firefox
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: thunderbird

Vendor Advisories (1)

redhatCVE-2025-6274Low

wabt: WebAssembly wabt excess resource consumption

Jun 19, 2025

References

github.com / user-attachments/files/20191325/wabt_crash_4.txt
Exploit
github.com / WebAssembly/wabt/issues/2598
ExploitIssue Tracking
vuldb.com
Permissions RequiredThird Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry