CVE-2026-44988

Signals

NVD · CVE-2026-7529 · 7.5 · The wiseCampaign – WooCommerce Conversions Made Easy plugin for WordPress is vulnerable to unauthorized modification and disclosure of data due to every one of NVD · CVE-2026-7456 · 6.5 · The Udimi Tools plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the `ajax_disconnect()` function inNVD · CVE-2026-67623 · 8.8 · Mistral Vibe before 2.23.3 contains a remote code execution vulnerability that allows attackers to execute arbitrary commands by embedding a malicious core.fsmoNVD · CVE-2026-17506 · 7.2 · The Independent Analytics plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 404 not_found_url tracking parameter in versions up to, and CISA KEV · CVE-2026-18556 · 7.4 · N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability · Added 2026-08-04 · Due 2026-08-07CISA KEV · CVE-2026-34486 · 9.8 · Apache Tomcat Missing Encryption of Sensitive Data Vulnerability · Added 2026-08-04 · Due 2026-08-07NVD · CVE-2026-7529 · 7.5 · The wiseCampaign – WooCommerce Conversions Made Easy plugin for WordPress is vulnerable to unauthorized modification and disclosure of data due to every one of NVD · CVE-2026-7456 · 6.5 · The Udimi Tools plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the `ajax_disconnect()` function inNVD · CVE-2026-67623 · 8.8 · Mistral Vibe before 2.23.3 contains a remote code execution vulnerability that allows attackers to execute arbitrary commands by embedding a malicious core.fsmoNVD · CVE-2026-17506 · 7.2 · The Independent Analytics plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 404 not_found_url tracking parameter in versions up to, and CISA KEV · CVE-2026-18556 · 7.4 · N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability · Added 2026-08-04 · Due 2026-08-07CISA KEV · CVE-2026-34486 · 9.8 · Apache Tomcat Missing Encryption of Sensitive Data Vulnerability · Added 2026-08-04 · Due 2026-08-07

CVE Database · CVE-2026-44988

CVE-2026-44988

· HIGHReceived

CVSS v3.1

8.8

EPSS

0.24%

Published

May 27, 2026

Modified

May 29, 2026

Public PoC / Exploit (1)

All weaponized →

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Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

Description

LibVNCClient is a library for easy implementation of a VNC client. In 0.9.15 and earlier, LibVNCClient's Tight encoding decoder uses fixed-size 2048-pixel scratch buffers for the Gradient filter, but it does not reject Tight rectangles whose width is larger than 2048 pixels. A malicious VNC server can send a crafted FramebufferUpdate rectangle using Tight encoding with NoZlib | ExplicitFilter and the Gradient filter. When a LibVNCClient-based client connects, the client processes the server-controlled rectangle width and writes beyond fixed-size Gradient buffers. This vulnerability is fixed with commit 5b270544b85233668b98161323297d418a8f5fd1.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-787

References (2)

https://github.com/LibVNC/libvncserver/commit/5b270544b85233668b98161323297d418a8f5fd1

https://github.com/LibVNC/libvncserver/security/advisories/GHSA-jcc5-8wj4-7c58

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