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CVE-2025-6275

14
FAUCET Score

CVE-2025-6275 is a use-after-free vulnerability affecting WebAssembly wabt up to version 1.0.37, specifically within the GetFuncOffset function in src/interp/binary-reader-interp.cc. It has a CVSS score of 3.3 (LOW), indicating a local attack vector with low complexity, requiring local privileges, and resulting in low availability impact. While the exploit has been publicly disclosed, there is no evidence of active exploitation, and it lacks exploit intelligence in common frameworks like Metasploit or Nuclei. Community discussion and media coverage are minimal, and the vulnerability's real-world impact is disputed 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
0.20%
Probability of exploitation in next 30 days
EPSS Percentile
10.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0020 is in the 48th percentile among its peer group of 1,511 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: thunderbird
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 10Fixed in: firefox
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-2025-6275Low

wabt: WebAssembly wabt use after free

Jun 19, 2025

References

github.com / user-attachments/files/20623626/wabt_crash_5.txt
Exploit
github.com / WebAssembly/wabt/issues/2614
ExploitIssue Tracking
vuldb.com
Permissions RequiredThird Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry