CVE-2026-40527
HighCVSS 7.8Exploitation Probability (EPSS)
Elevated risk56th percentile - higher than 56% of all known CVEs
Summary
A command injection vulnerability was found in radare2 prior to commit bc5a890 in the afsv/afsvj command path. Malicious ELF binaries can embed r2 command sequences as DWARF DW_TAG_formal_parameter names, which execute when the binary is analyzed with aaa and afsvj, allowing arbitrary shell command execution through unsanitized parameter interpolation in the pfq command string.
Risk Assessment
An attacker can remotely execute arbitrary shell commands on the victim's system if they analyze a crafted binary with radare2, potentially leading to full system compromise or data theft.
Recommendation
Immediately update radare2 to a version containing commit bc5a890 or later. Until updated, avoid analyzing untrusted binaries with the aaa and afsvj commands.
Other vulnerabilities in radare2
See all- CVE-2026-8696High
Version 6.1.5 of radare2 contains a use-after-free vulnerability in the gdbr_pids_list() function, which can be exploited by remote attackers to cause a denial of service or potentially execute arbitrary code by sending malformed thread information responses.
- CVE-2026-8695High
radare2 version 6.1.5 contains a use-after-free vulnerability in the gdbr_threads_list() function. This allows remote attackers to trigger memory corruption by sending a valid qfThreadInfo response followed by a malformed qsThreadInfo response.
- CVE-2026-40499High
radare2 prior to version 6.1.4 contains a command injection vulnerability in the PDB parser's print_gvars() function that allows attackers to execute arbitrary commands by embedding a newline byte in the PE section header name field. Attackers can craft a malicious PDB file with specially crafted section names to inject r2 commands that are executed when the idp command processes the file.
- CVE-2017-15932High
In radare2 version 2.0.1, an integer exception (negative number leading to an invalid memory access) exists in store_versioninfo_gnu_verdef() in elf.c, which can be triggered by crafted ELF files when parsing the ELF version on 32-bit systems.
- CVE-2017-15931High
In radare2 version 2.0.1, an integer exception (negative number leading to an invalid memory access) exists in store_versioninfo_gnu_verneed() in elf.c, which can be exploited via crafted ELF files on 32-bit systems.
- CVE-2017-15385High
The store_versioninfo_gnu_verdef function in radare2 2.0.0 allows remote attackers to cause a denial of service via a crafted ELF file, leading to an invalid write in r_read_le16 and application crash.
- CVE-2017-15368High
The wasm_dis function in radare2 version 2.0.0 allows remote attackers to cause denial of service through stack-based buffer over-read, leading to application crash. The attack can be executed using a crafted WASM file that triggers an incorrect r_hex_bin2str call.
- CVE-2017-10929High
The grub_memmove function in radare2 1.5.0 allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) via a crafted binary file.
- CVE-2017-9949High
The grub_memmove function in radare2 1.5.0 allows remote attackers to cause a denial of service via a crafted binary file, potentially leading to application crashes due to a buffer underflow.
- CVE-2017-6448High
The dalvik_disassemble function in radare2 version 1.2.1 allows remote attackers to cause a denial of service (stack-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted DEX file.
Original NVD description (English source)
radare2 prior to commit bc5a890 contains a command injection vulnerability in the afsv/afsvj command path where crafted ELF binaries can embed malicious r2 command sequences as DWARF DW_TAG_formal_parameter names. Attackers can craft a binary with shell commands in DWARF parameter names that execute when radare2 analyzes the binary with aaa and subsequently runs afsvj, allowing arbitrary shell command execution through the unsanitized parameter interpolation in the pfq command string.