A vulnerability was found in WebAssembly wabt up to 1.0.37 and classified as problematic. This issue affects the function LogOpcode of the file src/binary-reader-objdump.cc. The manipulation leads to reachable assertion. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The code maintainer explains that this issue might not affect "real world wasm programs".

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Access Vector Local

Access Complexity Low

Authentication Single

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

Exploitation poc

Automatable no

Technical Impact partial

Affected Vendors & Products

No data.

No data.

No data.

References
Link Providers
https://github.com/WebAssembly/wabt/issues/2574 cve-icon cve-icon cve-icon cve-icon
https://github.com/user-attachments/files/19529411/wabt_crash.txt cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-6273 cve-icon
https://vuldb.com/?ctiid.313277 cve-icon cve-icon cve-icon
https://vuldb.com/?id.313277 cve-icon cve-icon cve-icon
https://vuldb.com/?submit.593010 cve-icon cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-6273 cve-icon
History

Mon, 23 Jun 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 20 Jun 2025 23:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 threat_severity

Low

Thu, 19 Jun 2025 18:45:00 +0000

Type Values Removed Values Added
Description A vulnerability was found in WebAssembly wabt up to 1.0.37 and classified as problematic. This issue affects the function LogOpcode of the file src/binary-reader-objdump.cc. The manipulation leads to reachable assertion. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The code maintainer explains that this issue might not affect "real world wasm programs".
Title WebAssembly wabt binary-reader-objdump.cc LogOpcode assertion
Weaknesses CWE-617
References
Metrics cvssV2_0

{'score': 1.7, 'vector': 'AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 3.3, 'vector': 'CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 4.8, 'vector': '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'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2025-06-19T18:31:06.692Z

Updated: 2025-06-23T19:30:37.748Z

Reserved: 2025-06-19T06:38:03.623Z

Link: CVE-2025-6273

cve-icon Vulnrichment

Updated: 2025-06-23T16:16:55.942Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-06-19T19:15:21.800

Modified: 2025-06-23T20:16:40.143

Link: CVE-2025-6273

cve-icon Redhat

Severity : Low

Publid Date: 2025-06-19T18:31:06Z

Links: CVE-2025-6273 - Bugzilla