radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.0, radare2's Lua 5.3 bytecode function parser was vulnerable because the Lua 5.3 bytecode function parser read fixed function-metadata fields immediately after a function-name string without checking the remaining buffer length. The vulnerability is triggered by opening or inspecting a crafted Lua 5.3 bytecode file whose function-name string ends at the input-buffer boundary. The parser read two integers and three one-byte fields beyond the allocated input buffer. This can cause invalid parser results or process termination; no attacker-observable memory disclosure has been demonstrated. This issue is fixed in version 6.2.0.
Metrics
Affected Vendors & Products
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History
Mon, 28 Sep 2026 13:30:00 +0000
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Radare
Radare radare2 |
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| CPEs | cpe:2.3:a:radare:radare2:*:*:*:*:*:*:*:* | |
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Radare
Radare radare2 |
Tue, 22 Sep 2026 17:30:00 +0000
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ssvc
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Tue, 22 Sep 2026 17:15:00 +0000
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Radareorg
Radareorg radare2 |
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Radareorg
Radareorg radare2 |
Tue, 22 Sep 2026 15:15:00 +0000
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| Description | radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.0, radare2's Lua 5.3 bytecode function parser was vulnerable because the Lua 5.3 bytecode function parser read fixed function-metadata fields immediately after a function-name string without checking the remaining buffer length. The vulnerability is triggered by opening or inspecting a crafted Lua 5.3 bytecode file whose function-name string ends at the input-buffer boundary. The parser read two integers and three one-byte fields beyond the allocated input buffer. This can cause invalid parser results or process termination; no attacker-observable memory disclosure has been demonstrated. This issue is fixed in version 6.2.0. | |
| Title | radare2: Out-of-bounds Read at the end of string in the LUA 5.3 bytecode | |
| Weaknesses | CWE-125 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-09-22T15:14:47.022Z
Updated: 2026-09-22T16:11:40.440Z
Reserved: 2026-08-27T17:48:42.122Z
Link: CVE-2026-81883
Updated: 2026-09-22T16:11:12.728Z
Status : Analyzed
Published: 2026-09-22T16:18:03.200
Modified: 2026-09-28T13:21:01.900
Link: CVE-2026-81883
No data.