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CVE-2023-27117

24
FAUCET Score

CVE-2023-27117 is a high-severity heap overflow vulnerability affecting WebAssembly v1.0.29, specifically within the wabt::Node::operator component. This vulnerability has a CVSS score of 7.8, indicating a high potential impact on confidentiality, integrity, and availability, and can be triggered locally with user interaction. While there is no evidence of active exploitation, public exploit code, or significant community discussion, its high severity warrants attention.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.29CPE matchmatch criteria
cpe:2.3:a:webassembly:webassembly:1.0.29:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.32%
Probability of exploitation in next 30 days
EPSS Percentile
24.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0032 is in the 23rd percentile among its peer group of 11,617 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 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

Remediation records are not available for this CVE.

References

github.com / WebAssembly/wabt/issues/1989
ExploitIssue Tracking