VulnerabilityModified
CVE-2023-27117
WebAssembly v1.0.29 was discovered to contain a heap overflow via the component component wabt::Node::operator.
HIGH 7.8EPSS 0.32%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.32%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
WebAssembly v1.0.29 was discovered to contain a heap overflow via the component component wabt::Node::operator.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.32% probability · 23th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- webassembly/webassembly
- Source
- cve@mitre.org
EPSS 0.3% since 7 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/WebAssembly/wabt/issues/1989Exploit, Issue Tracking
- https://github.com/WebAssembly/wabt/issues/1989Exploit, Issue Tracking
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.