Linux Distros Unpatched Vulnerability : CVE-2026-110777

medium Nessus Plugin ID 365942

Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

- A flaw was found in evolution-data-server. Calendar events containing a file:// URI in their ATTACH property automatically read the targeted local file, base64-encode its contents and upload it back to the server when the event is saved. There are no file path restrictions or checks to verify whether the attachment originally came from the server or was added locally. This allows an attacker with access to a shared CalDAV calendar to exfiltrate arbitrary files the user has access to when interacting with malicious calendar events. (CVE-2026-110777)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2026-110777

Plugin Details

Severity: Medium

ID: 365942

File Name: unpatched_CVE_2026_110777.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Misc.

Published: 10/14/2026

Updated: 10/14/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.67

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.3

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2026-110777

CVSS v3

Risk Factor: Medium

Base Score: 5.7

Temporal Score: 5.2

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

Temporal Vector: CVSS:3.0/E:U/RL:U/RC:C

Vulnerability Information

CPE: cpe:/o:centos:centos:7, cpe:/o:centos:centos:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:centos:centos:evolution-data-server-devel, p-cpe:/a:centos:centos:evolution-data-server-doc, p-cpe:/a:centos:centos:evolution-data-server-langpacks, p-cpe:/a:centos:centos:evolution-data-server-perl, p-cpe:/a:centos:centos:evolution-data-server-tests, p-cpe:/a:centos:centos:evolution-data-server-ui-devel, p-cpe:/a:centos:centos:evolution-data-server-ui, p-cpe:/a:centos:centos:evolution-data-server, p-cpe:/a:redhat:enterprise_linux:evolution-data-server-devel, p-cpe:/a:redhat:enterprise_linux:evolution-data-server-doc, p-cpe:/a:redhat:enterprise_linux:evolution-data-server-langpacks, p-cpe:/a:redhat:enterprise_linux:evolution-data-server-perl, p-cpe:/a:redhat:enterprise_linux:evolution-data-server-tests, p-cpe:/a:redhat:enterprise_linux:evolution-data-server-ui-devel, p-cpe:/a:redhat:enterprise_linux:evolution-data-server-ui, p-cpe:/a:redhat:enterprise_linux:evolution-data-server

Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 10/14/2026

Reference Information

CVE: CVE-2026-110777