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CVE-2026-25702: Suse Linux Enterprise Server Improper Access Control (CVSS 7.3)

CVE-2026-25702 is a high severity improper access control in Suse Linux Enterprise Server with a CVSS score of 7.3. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Last updated: Jun 17, 2026

Quick answer

Direct answer

CVE-2026-25702 is a high severity improper access control in Suse Linux Enterprise Server with a CVSS score of 7.3. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Risk scores

CVSS base score
7.3HIGH
EPSS probability
0.37%
Higher than 29 percent of all CVEs
CISA KEV
Not listed
CVSS metricWhat it means
Attack vector (AV:N)Network: reachable remotely
Attack complexity (AC:L)Low complexity
Privileges required (PR:N)No privileges required
User interaction (UI:N)No user interaction
Scope (S:U)Scope unchanged
Confidentiality (C:L)Low confidentiality impact
Integrity (I:L)Low integrity impact
Availability (A:L)Low availability impact

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

About Suse Linux Enterprise Server

CVE-2026-25702 affects Suse Linux Enterprise Server, a product from Suse. Before acting, confirm where Suse Linux Enterprise Server runs in your estate, who owns it and whether it is reachable from the internet, because exposure decides real risk more than the score alone.

What the flaw is

In plain terms: A Improper Access Control vulnerability in the kernel of SUSE SUSE Linux Enterprise Server 12 SP5 breaks nftables, causing firewall rules applied via nftables to not be effective.This issue affects SUSE Linux Enterprise Server: from 9e6d9d4601768c75fdb0bad3fbbe636e748939c2 before 9c294edb7085fb91650bc12233495a8974c5ff2d.

The weakness class is Improper Access Control. The software does not properly restrict who can use a resource.

Based on its CVSS vector, the flaw can be reached over the network, needs no login, and needs no user interaction. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Affected versions and timeline

FieldDetail
ProductSuse Linux Enterprise Server
Affected versionsLinux Enterprise Server 12
PublishedMar 5, 2026
Last modifiedJun 17, 2026
Added to CISA KEVNot listed
Assigning CNAmeissner@suse.de

How to detect it

  • Inventory every instance of Suse Linux Enterprise Server and record the running version against the affected range above.
  • Check external attack surface scans for internet facing instances of the component.
  • Review logs on affected systems for unusual requests, errors or new processes around the vulnerable function.
  • Confirm with an authenticated vulnerability scan once your scanner has a check for this CVE.

How to fix it

  • Apply the fixed version of Suse Linux Enterprise Server named in the vendor advisory.
  • If patching must wait, restrict network access to the affected service and put it behind authentication or a web application firewall rule.
  • Rescan after the change to prove the exposure is gone, then close the ticket.

CTEM action plan

CTEM stageWhat to do for this CVE
ScopeAdd every business service that depends on Suse Linux Enterprise Server to the current CTEM cycle.
DiscoverFind all instances, including shadow and cloud deployments, and record versions and exposure.
PrioritizeRank using EPSS and CVSS together with asset exposure and business impact.
ValidateConfirm the flaw is reachable and exploitable in your environment and that compensating controls work.
MobilizeAssign the fix to the asset owner with a due date matched to the priority, then verify closure.

CWE References

Technical References

Frequently asked questions

CVE-2026-25702 is a high severity improper access control in Suse Linux Enterprise Server with a CVSS score of 7.3. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

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