Ppp: [pre-authentication global buffer overflow] (CVE-2026-85495)
Description
A pre-authentication global buffer overflow vulnerability has been identified in the ppp software affecting multiple specific Ubuntu package versions. This vulnerability could potentially allow an attacker to cause a denial of service or execute arbitrary code before authentication occurs.
Affected software
pkg:deb/ubuntu/ppp?arch=source&distro=esm-infra-legacy/trustypkg:deb/ubuntu/ppp?arch=source&distro=xenialpkg:deb/ubuntu/ppp?arch=source&distro=bionicpkg:deb/ubuntu/ppp?arch=source&distro=focalpkg:deb/ubuntu/ppp?arch=source&distro=jammypkg:deb/ubuntu/ppp?arch=source&distro=noblepkg:deb/ubuntu/ppp?arch=source&distro=stonkingpkg:deb/ubuntu/ppp?arch=source&distro=resoluteRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-85495 describes a pre-authentication global buffer overflow vulnerability in the ppp software. The vulnerability affects multiple specific Ubuntu package versions of ppp, as listed. No CVSS score or detailed technical exploitation information is provided. There are no known exploits in the wild reported. The vulnerability is categorized as medium severity.
Potential Impact
The buffer overflow occurs before authentication, which may allow an attacker to trigger a crash or potentially execute arbitrary code in the context of the vulnerable ppp process. This could lead to denial of service or unauthorized code execution depending on exploitation, but no active exploitation is currently known.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Users should monitor Ubuntu security advisories for updates and apply patches once available.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-85495
- Osv Schema Version
- 1.7.0
- Ecosystems
- ["Ubuntu:Pro:14.04:LTS","Ubuntu:16.04:LTS","Ubuntu:18.04:LTS","Ubuntu:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:26.10","Ubuntu:26.04:LTS"]
Threat ID: 6ad3f5552cdf04f65665e93a
Added to database: 10/17/2026, 22:23:17 UTC
Last enriched: 10/17/2026, 23:26:34 UTC
Last updated: 10/17/2026, 23:26:34 UTC
Views: 2
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