How severe is CVE-2026-34281?

CVE-2026-34281 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-34281 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-34281?

CVE-2026-34281 affects Oracle Solaris. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-34281?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-34281 have an EU (EUVD) identifier?

Yes. CVE-2026-34281 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24360.

When was CVE-2026-34281 published?

CVE-2026-34281 was published on 2026-04-21 and last updated on 2026-06-17.

CVE-2026-34281

CVE-2026-34281 is a medium-severity vulnerability in Oracle Solaris with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-24360
Weakness: CWE-400
Affected product: Oracle Solaris
Published: 2026-04-21
Last modified: 2026-06-17

Description

Vulnerability in the Oracle Solaris product of Oracle Systems (component: Kernel). The supported version that is affected is 11.4. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Solaris executes to compromise Oracle Solaris. While the vulnerability is in Oracle Solaris, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Solaris. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H).

Frequently asked questions

What is CVE-2026-34281?: Vulnerability in the Oracle Solaris product of Oracle Systems (component: Kernel). The supported version that is affected is 11.4. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Solaris executes to compromise Oracle Solaris. While the vulnerability is in Oracle Solaris, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Solaris. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H).
How severe is CVE-2026-34281?: CVE-2026-34281 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-34281 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-34281?: CVE-2026-34281 affects Oracle Solaris. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-34281?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-34281 have an EU (EUVD) identifier?: Yes. CVE-2026-34281 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24360.
When was CVE-2026-34281 published?: CVE-2026-34281 was published on 2026-04-21 and last updated on 2026-06-17.

References

https://www.oracle.com/security-alerts/cpuapr2026.html

Affected products (1)

cpe:2.3:o:oracle:solaris:11.4:*:*:*:*:*:*:*

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