Is CVE-2026-33633 actively exploited?

No active exploitation of CVE-2026-33633 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-33633 be exploited remotely?

Yes. CVE-2026-33633 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-33633?

CVE-2026-33633 has a CVSS score of 8.8 (HIGH).

HOME VULNERABILITIESCVE-2026-33633

HIGH

CVE-2026-33633

CWE-122Published: May 19, 2026· Updated: May 22, 2026

8.8

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:13.0th

Official Description

Kitty is a cross-platform GPU based terminal. Versions 0.46.2 and below contain a heap buffer overflow in load_image_data() that allows any process which can write to the terminal's stdin to crash kitty immediately. The vulnerability is triggered by a single APC graphics protocol command with a PNG format declaration (f=100) whose payload exceeds twice the initial buffer capacity. The overflow is attacker-controlled in both length and content, causing DoS and potentially escalation to RCE itself. This issue has been fixed in version 0.47.0.

NVD Source

Technical Analysis

CVE-2026-33633 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.