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Echo: vim: security update to 2:9.2.0858-1

medium Tenable Cloud Security Plugin ID 462709

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Vim is an open source, command line text editor. Prior to version 9.2.0565, the update_snapshot() function
 in src/terminal.c copies the visible terminal screen into the scrollback buffer when a snapshot is taken.
 For each screen cell it walks the cell's chars[] array with no upper bound, stopping only when it
 encounters a NUL terminator. When a cell legitimately fills all VTERM_MAX_CHARS_PER_CELL (6) slots — a
 base character plus five combining marks — the bundled libvterm returns the array without a terminating
 NUL, so the loop reads past the fixed six-element array and appends the out-of-bounds values to a buffer
 reserved for only six characters. A program whose output is rendered inside a :terminal window can trigger
 this with a short byte sequence and no Vim scripting, leading to a crash. This issue has been patched in
 version 9.2.0565. (CVE-2026-52859)

Solution

Update the vim library and its related packages to version 2:9.2.0858-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-52859

Plugin Details

Severity: Medium

ID: 462709

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 51.46

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

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

CVSS Score Source: CVE-2026-52859

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 2.7

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/12/2026

Vulnerability Publication Date: 6/11/2026

Reference Information

CVE: CVE-2026-52859

IAVA: 2026-A-0619