PT-2025-26235 · Unknown+1 · Webassembly Wabt+1

Jjleo · Published 2025-06-19 · Updated 2026-01-06 · CVE-2025-6273

Positive Technologies (AI Summary)

CVSS v3.1

3.3

Low

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions WebAssembly wabt versions 1.0.37 and earlier

Description A vulnerability was found in the function LogOpcode of the file src/binary-reader-objdump.cc. The manipulation leads to a reachable assertion. Local access is required to approach this attack. 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".

Recommendations For versions 1.0.37 and earlier, consider restricting access to the LogOpcode function until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

LPE

Assertion Failure

Weakness Enumeration

CWE-617

Related Identifiers

CVE-2025-6273

Affected Products

Debian

Webassembly Wabt

References · 17

• 🔥 https://github.com/WebAssembly/wabt/issues/2574 · Exploit
• 🔥❌ https://github.com/user-attachments/files/19529411/wabt_crash.txt · Exploit, Deleted
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-6273 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-6273 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-6273 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2025-6273 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-6273 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-6273 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-6273 · Security Note
• https://twitter.com/VulmonFeeds/status/1935785685245370671 · Twitter Post
• https://t.me/cvetracker/26584 · Telegram Post
• https://t.me/cveNotify/147845 · Telegram Post
• https://twitter.com/CVEnew/status/1935787266422476803 · Twitter Post
• https://vuldb.com/?ctiid.313277 · Note
• https://vuldb.com/?submit.593010 · Note