EUVD-2026-41767
GHSA-fcx2-pfmg-pwvq
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Missing authorization on a root update helper reachable only by an authenticated local user (AV:L, PR:L), reliably triggered without interaction (AC:L, UI:N), yielding full root compromise (C/I/A:H).
Primary rating from Vendor (usom).
CVSS VectorVendor: usom
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
Missing Authorization vulnerability in TUBITAK BILGEM Software Technologies Research Institute Pardus Update allows Privilege Escalation.
This issue affects Pardus Update: from <=0.6.3 before 0.6.6.
AnalysisAI
Local privilege escalation in Pardus Update (versions <=0.6.3, fixed in 0.6.6), the software-update component of TÜBİTAK BİLGEM's Debian-based Pardus Linux distribution, allows a low-privileged local user to perform actions they should not be authorized for and escalate to root-level control. The CWE-862 Missing Authorization flaw carries CVSS 7.8 with high confidentiality, integrity, and availability impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated local presence on a Pardus system running Pardus Update 0.6.3 or earlier (CVSS PR:L, AV:L): the attacker must already hold a low-privileged local account and be able to invoke the affected update component. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, 7.8 High) describes a locally exploitable, low-complexity flaw requiring only low privileges and no user interaction, with total compromise of the host - a classic reliable local privilege-escalation profile. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who has obtained an ordinary local user account on a Pardus workstation - for example via phishing, a stolen credential, or a low-privilege service compromise - invokes the Pardus Update privileged operation directly without the required authorization check. Because attack complexity is low and no user interaction is needed, the missing authorization lets them execute privileged update actions to gain root, fully compromising confidentiality, integrity, and availability of the host. … |
| Remediation | Vendor-released patch: Pardus Update 0.6.6 - upgrade all affected hosts to version 0.6.6 or later via the standard Pardus package repositories, which is the primary and complete fix. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all systems running Pardus Update version 0.6.3 or earlier and restrict local user access to authorized administrators only. …
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Same weakness CWE-862 – Missing Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
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