CVE-2025-47276 (GCVE-0-2025-47276)
Vulnerability from cvelistv5 – Published: 2025-05-13 15:34 – Updated: 2025-05-13 19:31
VLAI
EPSS
VEX
Title
Actualizer Uses OpenSSL's "-passwd" Function Which Uses SHA512 Under The Hood Instead of Proper Password Hasher like Yescript/Argon2i
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.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-13 19:31 UTC
CWE
- CWE-328 - Use of Weak Hash
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://github.com/ChewKeanHo/Actualizer/security… | x_refsource_CONFIRM |
| https://github.com/ChewKeanHo/Actualizer/issues/1 | x_refsource_MISC |
| https://github.com/openssl/openssl/issues/19340 | x_refsource_MISC |
| https://github.com/ChewKeanHo/Actualizer/commit/3… | x_refsource_MISC |
| https://cheatsheetseries.owasp.org/cheatsheets/Pa… | x_refsource_MISC |
| https://github.com/ChewKeanHo/Actualizer/releases… | x_refsource_MISC |
| https://www.reddit.com/r/debian/comments/1kknzqi/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| ChewKeanHo | Actualizer |
Affected:
< 1.2.0
|
guessed |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-47276",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-05-13T19:31:14.270803Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-05-13T19:31:22.672Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Actualizer",
"vendor": "ChewKeanHo",
"versions": [
{
"status": "affected",
"version": "\u003c 1.2.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "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\u0027s \"-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\u0027s Debian\u0027s yescript overriding the older SHA512 hash created by OpenSSL. As a workaround, users need to reset both `root` and \"Alpha\" users\u0027 passwords."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-328",
"description": "CWE-328: Use of Weak Hash",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-05-13T15:34:28.801Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/ChewKeanHo/Actualizer/security/advisories/GHSA-v626-chv9-v9qr",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/ChewKeanHo/Actualizer/security/advisories/GHSA-v626-chv9-v9qr"
},
{
"name": "https://github.com/ChewKeanHo/Actualizer/issues/1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/ChewKeanHo/Actualizer/issues/1"
},
{
"name": "https://github.com/openssl/openssl/issues/19340",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/openssl/openssl/issues/19340"
},
{
"name": "https://github.com/ChewKeanHo/Actualizer/commit/32c9cc232c856f078f8269fba80ce7562bbff86b",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/ChewKeanHo/Actualizer/commit/32c9cc232c856f078f8269fba80ce7562bbff86b"
},
{
"name": "https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html",
"tags": [
"x_refsource_MISC"
],
"url": "https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html"
},
{
"name": "https://github.com/ChewKeanHo/Actualizer/releases/tag/v1.2.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/ChewKeanHo/Actualizer/releases/tag/v1.2.0"
},
{
"name": "https://www.reddit.com/r/debian/comments/1kknzqi/actualizer_v110_upgraded",
"tags": [
"x_refsource_MISC"
],
"url": "https://www.reddit.com/r/debian/comments/1kknzqi/actualizer_v110_upgraded"
}
],
"source": {
"advisory": "GHSA-v626-chv9-v9qr",
"discovery": "UNKNOWN"
},
"title": "Actualizer Uses OpenSSL\u0027s \"-passwd\" Function Which Uses SHA512 Under The Hood Instead of Proper Password Hasher like Yescript/Argon2i"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2025-47276",
"datePublished": "2025-05-13T15:34:28.801Z",
"dateReserved": "2025-05-05T16:53:10.372Z",
"dateUpdated": "2025-05-13T19:31:22.672Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-47276",
"date": "2026-11-13",
"epss": "0.00306",
"percentile": "0.23724"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"product": "Actualizer",
"vendor": "ChewKeanHo",
"versions": [
{
"status": "affected",
"version": "\u003c 1.2.0"
}
]
}
],
"source": "security-advisories@github.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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\u0027s \"-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\u0027s Debian\u0027s yescript overriding the older SHA512 hash created by OpenSSL. As a workaround, users need to reset both `root` and \"Alpha\" users\u0027 passwords."
},
{
"lang": "es",
"value": "Actualizer es una soluci\u00f3n de script de shell \u00fanico que permite a desarrolladores e ingenieros de sistemas integrados crear sistemas operativos Debian (SO). Antes de la versi\u00f3n 1.2.0, Actualizer utilizaba la funci\u00f3n \"-passwd\" de OpenSSL, que utiliza SHA512 en lugar de un hash de contrase\u00f1as m\u00e1s adecuado como Yescript/Argon2i. Todos los usuarios de Actualizer que creen un sistema operativo Debian completo se ven afectados. Los usuarios deben actualizar a la versi\u00f3n 1.2.0 de Actualizer. La implementaci\u00f3n actual del SO requiere cambios manuales de contrase\u00f1as para las cuentas alfa y root. El cambio implementar\u00e1 el yescript de Debian, anulando el hash SHA512 anterior creado por OpenSSL. Como workaround, los usuarios deben restablecer las contrase\u00f1as de los usuarios `root` y `Alpha`."
}
],
"id": "CVE-2025-47276",
"lastModified": "2026-06-17T09:27:39.153",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "security-advisories@github.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-47276",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-05-13T19:31:14.270803Z",
"version": "2.0.3"
}
}
]
},
"published": "2025-05-13T16:15:32.037",
"references": [
{
"source": "security-advisories@github.com",
"url": "https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/ChewKeanHo/Actualizer/commit/32c9cc232c856f078f8269fba80ce7562bbff86b"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/ChewKeanHo/Actualizer/issues/1"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/ChewKeanHo/Actualizer/releases/tag/v1.2.0"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/ChewKeanHo/Actualizer/security/advisories/GHSA-v626-chv9-v9qr"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/openssl/openssl/issues/19340"
},
{
"source": "security-advisories@github.com",
"url": "https://www.reddit.com/r/debian/comments/1kknzqi/actualizer_v110_upgraded"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-328"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2025-05-28T18:18:38+00:00",
"cve": "CVE-2025-47276",
"id": "CVE-2025-47276",
"initial_release_date": "2025-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "Actualizer Uses OpenSSL\u0027s \"-passwd\" Function Which Uses SHA512 Under The Hood Instead of Proper Password Hasher like Yescript/Argon2i",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-47276.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-47276",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-05-13T19:31:14.270803Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-05-13T19:31:19.712Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Actualizer",
"vendor": "ChewKeanHo",
"versions": [
{
"status": "affected",
"version": "\u003c 1.2.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "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\u0027s \"-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\u0027s Debian\u0027s yescript overriding the older SHA512 hash created by OpenSSL. As a workaround, users need to reset both `root` and \"Alpha\" users\u0027 passwords."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-328",
"description": "CWE-328: Use of Weak Hash",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-05-13T15:34:28.801Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/ChewKeanHo/Actualizer/security/advisories/GHSA-v626-chv9-v9qr",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/ChewKeanHo/Actualizer/security/advisories/GHSA-v626-chv9-v9qr"
},
{
"name": "https://github.com/ChewKeanHo/Actualizer/issues/1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/ChewKeanHo/Actualizer/issues/1"
},
{
"name": "https://github.com/openssl/openssl/issues/19340",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/openssl/openssl/issues/19340"
},
{
"name": "https://github.com/ChewKeanHo/Actualizer/commit/32c9cc232c856f078f8269fba80ce7562bbff86b",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/ChewKeanHo/Actualizer/commit/32c9cc232c856f078f8269fba80ce7562bbff86b"
},
{
"name": "https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html",
"tags": [
"x_refsource_MISC"
],
"url": "https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html"
},
{
"name": "https://github.com/ChewKeanHo/Actualizer/releases/tag/v1.2.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/ChewKeanHo/Actualizer/releases/tag/v1.2.0"
},
{
"name": "https://www.reddit.com/r/debian/comments/1kknzqi/actualizer_v110_upgraded",
"tags": [
"x_refsource_MISC"
],
"url": "https://www.reddit.com/r/debian/comments/1kknzqi/actualizer_v110_upgraded"
}
],
"source": {
"advisory": "GHSA-v626-chv9-v9qr",
"discovery": "UNKNOWN"
},
"title": "Actualizer Uses OpenSSL\u0027s \"-passwd\" Function Which Uses SHA512 Under The Hood Instead of Proper Password Hasher like Yescript/Argon2i"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2025-47276",
"datePublished": "2025-05-13T15:34:28.801Z",
"dateReserved": "2025-05-05T16:53:10.372Z",
"dateUpdated": "2025-05-13T19:31:22.672Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Loading…
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
Loading timeline…
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.