CVE-2023-39743 json
lrzip-next LZMA v23.01 was discovered to contain an access violation via the component /bz3_decode_block src/libbz3.c.
published 2023-08-17 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-43443
- cvss
- 5.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 57%
- public exploits
- 0
- none known
Summary
lrzip-next LZMA v23.01 was discovered to contain an access violation via the component /bz3_decode_block src/libbz3.c.
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.83% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/pete4abw/lrzip-next/issues/132 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
-
github.com
/pete4abw/lrzip-next/issues/132
exploit, issue-tracking
-
github.com
/huanglei3/lrzip-next-poc/tree/main
technical-description
- gist.github.com /huanglei3/ec9090096aa92445cf0a8baa8e929084
Sources
- CVE List CVE-2023-39743
- NVD CVE-2023-39743
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