CVE-2022-43281 json
wasm-interp v1.0.29 was discovered to contain a heap overflow via the component std::vector<wabt::Type, std::allocator<wabt::Type>>::size()…
published 2022-10-28 4 y ago modified 2026-06-17 4 mo ago also PYSEC-2022-43187 , EUVD-2022-46325
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 27%
- public exploits
- 0
- none known
Summary
wasm-interp v1.0.29 was discovered to contain a heap overflow via the component std::vector<wabt::Type, std::allocator<wabt::Type>>::size() at /bits/stl_vector.h.
Patch / fix
- wabt Debian 14, Debian 13, Debian 12 1.0.30-1
debian advisories DEBIAN-CVE-2022-43281
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 18 mo ago
Exploit prediction
0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/WebAssembly/wabt/issues/1981 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| OSV | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | wabt | <=1.0.29 |
no fix listed |
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
github.com
/WebAssembly/wabt/issues/1981
exploit, issue-tracking, patch, third-party-advisory
Sources
- CVE List CVE-2022-43281
- NVD CVE-2022-43281
- OSV PYSEC-2022-43187
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.