Detections
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Echo: libpng1.6: security update to 1.6.48-1+e1

medium Tenable Self-Hosted Container Security Plugin ID 459116

Description

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

 - LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable
 Network Graphics) raster image files. Prior to version 1.6.51, a heap buffer over-read vulnerability
 exists in libpng's png_do_quantize function when processing PNG files with malformed palette indices. The
 vulnerability occurs when palette_lookup array bounds are not validated against externally-supplied image
 data, allowing an attacker to craft a PNG file with out-of-range palette indices that trigger out-of-
 bounds memory access. This issue has been patched in version 1.6.51. (CVE-2025-64505)

Solution

Update the libpng1.6 library and its related packages to version 1.6.48-1+e1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2025-64505

Plugin Details

Severity: Medium

ID: 459116

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 52.04

CVSS v2

Risk Factor: Medium

Base Score: 5.6

Temporal Score: 4.1

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

CVSS Score Source: CVE-2025-64505

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 11/22/2025

Vulnerability Publication Date: 11/11/2025

Reference Information

CVE: CVE-2025-64505