CVE-2023-33864
CWE-190Published: June 7, 2023· Updated: Jun 17, 2026
Official Description
StreamReader::ReadFromExternal in RenderDoc before 1.27 allows an Integer Overflow with a resultant Buffer Overflow. It uses uint32_t(m_BufferSize-m_InputSize) even though m_InputSize can exceed m_BufferSize.
Risk Analysis
RenderDoc contains an integer overflow vulnerability in the StreamReader::ReadFromExternal function, which leads to a buffer overflow. This critical flaw could allow an attacker to execute arbitrary code. The CVSS score of 9.8 highlights the urgency of this memory safety issue.
No public exploit is known, and it is not in the CISA KEV. The vulnerability is remotely exploitable with low attack complexity.
Upgrade to RenderDoc version 1.27 or later to resolve the integer and buffer overflow issues.
Technical Analysis
CVE-2023-33864 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
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 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (13)
Quick Facts
Related CVEs (CWE-190)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-33864 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts