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CVE-2026-81882— radare2: Missing string termination causes heap out-of-bounds read in radare2 bplist parser

Quick assessment

Affected
radareorg radare2
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.0, radare2's binary property-list Unicode parser was vulnerable because the binary-property-list Unicode parser underallocated an uninitialized UTF-8 destination and di

CVSS 3.3 · Low
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I. Basic Information for CVE-2026-81882

Vulnerability Information

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Vulnerability Title
radare2: Missing string termination causes heap out-of-bounds read in radare2 bplist parser
Source: CVE Program / CVE List V5
Vulnerability Description
radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.0, radare2's binary property-list Unicode parser was vulnerable because the binary-property-list Unicode parser underallocated an uninitialized UTF-8 destination and did not guarantee NUL termination. The vulnerability is triggered by running the explicit pFB or pFBj commands on untrusted binary property-list data. The json encoder treated the converted data as a nul-terminated c string and could continue reading beyond the allocation. This can cause disclosure of uninitialized or adjacent heap contents in JSON output and possible process termination. This issue is fixed in version 6.2.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
radareorg radare2 < 6.2.0 -

II. Public POCs for CVE-2026-81882

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III. Intelligence Information for CVE-2026-81882

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Patches & Fixes for CVE-2026-81882 (1)

Other References for CVE-2026-81882 (3)

Same Patch Batch · radareorg · 2026-09-22 · 9 CVEs total

CVE-2026-81885 5.5 MEDIUM radare2: Infinite relocation-chain loop causes denial of service in radare2 NE parser
CVE-2026-81879 5.5 MEDIUM radare2: Heap out-of-bounds read in radare2 ELF PN_XNUM handling
CVE-2026-81880 5.5 MEDIUM radare2: Uncontrolled resource consumption in radare2 PEF loader
CVE-2026-81878 5.5 MEDIUM radare2: Integer overflow causes heap out-of-bounds write in radare2 PYC parser
CVE-2026-81886 5.5 MEDIUM radare2: Uncontrolled memory allocation in radare2 dmp64 parser
CVE-2026-81881 3.3 LOW radare2: Heap out-of-bounds read in radare2 Mach-O Swift metadata parser
CVE-2026-81883 3.3 LOW radare2: Out-of-bounds Read at the end of string in the LUA 5.3 bytecode
CVE-2026-81884 2.5 LOW radare2: Heap out-of-bounds read in radare2 Mach-O LC_DATA_IN_CODE parser

IV. Related Vulnerabilities

Same product: radare2
Same vendor: radareorg
Same weakness: CWE-125

V. Comments for CVE-2026-81882

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