CVE-2025-47276 json
Actualizer Uses OpenSSL's "-passwd" Function Which Uses SHA512 Under The Hood Instead of Proper Password Hasher like Yescript/Argon2i
published 2025-05-13 17 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-14393
- cvss
- 7.5
- 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 22%
- public exploits
- 0
- none known
Summary
Actualizer is a single shell script solution to allow developers and embedded engineers to create Debian operating systems (OS). Prior to version 1.2.0, Actualizer uses OpenSSL's "-passwd" function, which uses SHA512 instead of a more suitable password hasher like Yescript/Argon2i. All Actualizer users building a full Debian Operating System are affected. Users should upgrade to version 1.2.0 of Actualizer. Existing OS deployment requires manual password changes against the alpha and root accounts. The change will deploy's Debian's yescript overriding the older SHA512 hash created by OpenSSL. As a workaround, users need to reset both `root` and "Alpha" users' passwords.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 17 mo ago
Exploit prediction
0.30% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
Affected products
- ChewKeanHo Actualizer
Classification
- Weakness
-
- CWE-328 Use of Weak Hash
References
- github.com /ChewKeanHo/Actualizer/commit/32c9cc232c856f078f8269fba80ce7562bbff86b
- github.com /ChewKeanHo/Actualizer/security/advisories/GHSA-v626-chv9-v9qr
- github.com /ChewKeanHo/Actualizer/issues/1
- github.com /openssl/openssl/issues/19340
- cheatsheetseries.owasp.org /cheatsheets/Password_Storage_Cheat_Sheet.html
- github.com /ChewKeanHo/Actualizer/releases/tag/v1.2.0
- reddit.com /r/debian/comments/1kknzqi/actualizer_v110_upgraded
Sources
- CVE List CVE-2025-47276
- NVD CVE-2025-47276
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.