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CRITICAL

CVE-2023-33863

CVSS v3

9.8

CRITICAL

EPSS Score

4.2 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

SerialiseValue in RenderDoc before 1.27 allows an Integer Overflow with a resultant Buffer Overflow. 0xffffffff is sign-extended to 0xffffffffffffffff (SIZE_MAX) and then there is an attempt to add 1.

Technical details

Published
2023-06-07

Frequently asked questions

What is CVE-2023-33863?

SerialiseValue in RenderDoc before 1.27 allows an Integer Overflow with a resultant Buffer Overflow. 0xffffffff is sign-extended to 0xffffffffffffffff (SIZE_MAX) and then there is an attempt to add 1.

Is CVE-2023-33863 actively exploited?

Active exploitation of CVE-2023-33863 has not been confirmed. Its EPSS score was 4.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-33863?

CVE-2023-33863 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2023-33863 affecting your environment?

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