Is CVE-2015-8316 in the CISA KEV catalog?

No. CVE-2015-8316 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-8316?

CVE-2015-8316 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2015-8316?

CVE-2015-8316 has an EPSS score of 1.75% (75th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-8316?

Upgrade lightdm on debian 11 to 1.16.6-1 or later.

CVE & CISA-KEV Catalog

CVE-2015-8316

MEDIUMEPSS 75th pctl

5.9

CVSS v3

NVD

Description

Array index error in LightDM (aka Light Display Manager) 1.14.3, 1.16.x before 1.16.6 when the XDMCP server is enabled allows remote attackers to cause a denial of service (process crash) via an XDMCP request packet with no address.

CWE-129

How to fix

Remediation Available

lightdmDebian

Fixed in:1.16.6-1CVE-2015-8316

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

1.75%probability of exploitation in 30 days

75thpercentile

Elevated risk: more likely to be exploited than 75% of all known CVEs.

References

Third-Party Advisory2

Mailing List1

openwall.com

Embed a live status badge for CVE-2015-8316

Markdown

[![CVE-2015-8316](https://tridentstack.com/cve/badge/CVE-2015-8316.svg)](https://tridentstack.com/cve/CVE-2015-8316)

HTML

<a href="https://tridentstack.com/cve/CVE-2015-8316"><img src="https://tridentstack.com/cve/badge/CVE-2015-8316.svg" alt="CVE-2015-8316"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.