SUSE-SU-2026:2700-1
Vulnerability from csaf_suse - Published: 2026-06-30 09:24 - Updated: 2026-06-30 09:24Summary
Security update for cifs-utils
Severity
Important
Notes
Title of the patch: Security update for cifs-utils
Description of the patch: This update for cifs-utils fixes the following issue
- CVE-2026-12505: cifs.upcall local privilege escalation via request_key-controlled namespace switch and NSS loading
(bsc#1267389).
Patchnames: SUSE-2026-2700,SUSE-SLE-SERVER-12-SP5-LTSS-2026-2700,SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-2700
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
7.8 (High)
Affected products
Recommended
18 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Enterprise Server 12 SP5-LTSS:cifs-utils-6.9-13.26.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 12 SP5-LTSS:cifs-utils-6.9-13.26.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 12 SP5-LTSS:cifs-utils-6.9-13.26.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 12 SP5-LTSS:cifs-utils-6.9-13.26.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 12 SP5-LTSS:cifs-utils-devel-6.9-13.26.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 12 SP5-LTSS:cifs-utils-devel-6.9-13.26.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 12 SP5-LTSS:cifs-utils-devel-6.9-13.26.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 12 SP5-LTSS:cifs-utils-devel-6.9-13.26.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 12 SP5:cifs-utils-6.9-13.26.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 12 SP5:cifs-utils-6.9-13.26.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 12 SP5:cifs-utils-6.9-13.26.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 12 SP5:cifs-utils-6.9-13.26.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 12 SP5:cifs-utils-devel-6.9-13.26.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 12 SP5:cifs-utils-devel-6.9-13.26.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 12 SP5:cifs-utils-devel-6.9-13.26.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 12 SP5:cifs-utils-devel-6.9-13.26.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cifs-utils-6.9-13.26.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cifs-utils-devel-6.9-13.26.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
important
References
8 references
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"vulnerabilities": [
{
"cve": "CVE-2026-12505",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-12505"
}
],
"notes": [
{
"category": "general",
"text": "A flaw was found in the cifs-utils package where the cifs.upcall helper fails to securely drop its root privileges before looking up user information inside a user-controlled environment. A local, low privileged attacker can exploit this by using a crafted request_key payload to trick the root-owned helper into entering a custom environment (namespace) containing a malicious NSS module. This forces the system to load the attacker\u0027s controlled NSS Module and configuration, allowing them to execute arbitrary commands as the root user, elevating their privileges and fully compromising the system.",
"title": "CVE description"
}
],
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},
"references": [
{
"category": "external",
"summary": "CVE-2026-12505",
"url": "https://www.suse.com/security/cve/CVE-2026-12505"
},
{
"category": "external",
"summary": "SUSE Bug 1267389 for CVE-2026-12505",
"url": "https://bugzilla.suse.com/1267389"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
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],
"scores": [
{
"cvss_v3": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
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}
],
"threats": [
{
"category": "impact",
"date": "2026-06-30T09:24:56Z",
"details": "important"
}
],
"title": "CVE-2026-12505"
}
]
}
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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.
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