# CVE-2026-79617: Pardus LightDM Greeter permission assignment vulnerability

Source: https://junglewise.ai/threats/cve-2026-79617-pardus-lightdm-greeter-permission-assignment-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-09. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-79617 · Severity: high · CVSS 7.1 · Published 2026-09-09

Pardus LightDM Greeter is the login screen component used in the Pardus Linux distribution. An incorrect permission configuration in versions before 0.4.15 allows attackers to exploit access control mechanisms, potentially gaining unauthorized access to the system during or after the login process.

Vendors: [TÜBİTAK BİLGEM](https://junglewise.ai/threats/vendors/t-bi-tak-bi-lgem).

## Quick answers

**Is CVE-2026-79617 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-79617 being exploited in the wild.

**How severe is CVE-2026-79617?** High severity, with a CVSS score of 7.1, published 9 September 2026.

**Which products and versions are affected?** TÜBİTAK BİLGEM Pardus LightDM Greeter before 0.4.15.

**Is there a fix for CVE-2026-79617?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-79617 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2026-79617?** Check whether you run TÜBİTAK BİLGEM Pardus LightDM Greeter at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

This vulnerability is classified as an Incorrect Permission Assignment for Critical Resource (CWE-732). The LightDM Greeter component fails to properly enforce access controls on critical resources, allowing an attacker with local access to exploit misconfigured permissions. No network access is required; exploitation occurs on the local system where the vulnerable greeter is running. An attacker can leverage this to escalate privileges or bypass authentication controls. The issue is fixed in version 0.4.15 and later.

## Affected products

- TÜBİTAK BİLGEM Pardus LightDM Greeter before 0.4.15

## Timeline

- 2026-09-09: disclosed

## References

- [https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1051](https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1051)