Vulnerabilities (CVE)

Filtered by vendor Upx Subscribe
Total 35 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2019-20021 2 Fedoraproject, Upx 2 Fedora, Upx 2025-04-11 4.3 MEDIUM 5.5 MEDIUM
A heap-based buffer over-read was discovered in canUnpack in p_mach.cpp in UPX 3.95 via a crafted Mach-O file.
CVE-2020-27799 1 Upx 1 Upx 2025-04-11 N/A 7.8 HIGH
A heap-based buffer over-read was discovered in the acc_ua_get_be32 function in miniacc.h in UPX 4.0.0 via a crafted Mach-O file.
CVE-2020-27788 1 Upx 1 Upx 2025-04-11 N/A 5.5 MEDIUM
An out-of-bounds read access vulnerability was discovered in UPX in PackLinuxElf64::canPack() function of p_lx_elf.cpp file. An attacker with a crafted input file could trigger this issue that could cause a crash leading to a denial of service.
CVE-2019-20053 2 Opensuse, Upx 3 Backports, Leap, Upx 2025-04-11 4.3 MEDIUM 5.5 MEDIUM
An invalid memory address dereference was discovered in the canUnpack function in p_mach.cpp in UPX 3.95 via a crafted Mach-O file.
CVE-2021-43313 1 Upx 1 Upx 2025-04-11 N/A 7.5 HIGH
A heap-based buffer overflow was discovered in upx, during the variable 'bucket' points to an inaccessible address. The issue is being triggered in the function PackLinuxElf32::invert_pt_dynamic at p_lx_elf.cpp:1688.
CVE-2019-20051 2 Fedoraproject, Upx 2 Fedora, Upx 2025-04-11 4.3 MEDIUM 5.5 MEDIUM
A floating-point exception was discovered in PackLinuxElf::elf_hash in p_lx_elf.cpp in UPX 3.95. The vulnerability causes an application crash, which leads to denial of service.
CVE-2021-46179 1 Upx 1 Upx 2025-04-11 N/A 6.5 MEDIUM
Reachable Assertion vulnerability in upx before 4.0.0 allows attackers to cause a denial of service via crafted file passed to the the readx function.
CVE-2020-27798 1 Upx 1 Upx 2025-04-11 N/A 5.5 MEDIUM
An invalid memory address reference was discovered in the adjABS function in p_lx_elf.cpp in UPX 4.0.0 via a crafted Mach-O file.
CVE-2020-27787 1 Upx 1 Upx 2025-04-11 N/A 5.5 MEDIUM
A Segmentaation fault was found in UPX in invert_pt_dynamic() function in p_lx_elf.cpp. An attacker with a crafted input file allows invalid memory address access that could lead to a denial of service.
CVE-2018-11243 1 Upx 1 Upx 2025-04-11 6.8 MEDIUM 7.8 HIGH
PackLinuxElf64::unpack in p_lx_elf.cpp in UPX 3.95 allows remote attackers to cause a denial of service (double free), limit the ability of a malware scanner to operate on the entire original data, or possibly have unspecified other impact via a crafted file.
CVE-2020-27801 1 Upx 1 Upx 2025-04-11 N/A 7.8 HIGH
A heap-based buffer over-read was discovered in the get_le64 function in bele.h in UPX 4.0.0 via a crafted Mach-O file.
CVE-2020-27797 1 Upx 1 Upx 2025-04-11 N/A 5.5 MEDIUM
An invalid memory address reference was discovered in the elf_lookup function in p_lx_elf.cpp in UPX 4.0.0 via a crafted Mach-O file.
CVE-2020-24119 2 Fedoraproject, Upx 2 Fedora, Upx 2025-04-11 5.8 MEDIUM 7.1 HIGH
A heap buffer overflow read was discovered in upx 4.0.0, because the check in p_lx_elf.cpp is not perfect.
CVE-2021-43312 1 Upx 1 Upx 2025-04-11 N/A 7.5 HIGH
A heap-based buffer overflow was discovered in upx, during the variable 'bucket' points to an inaccessible address. The issue is being triggered in the function PackLinuxElf64::invert_pt_dynamic at p_lx_elf.cpp:5239.
CVE-2021-20285 1 Upx 1 Upx 2025-04-11 8.3 HIGH 6.6 MEDIUM
A flaw was found in upx canPack in p_lx_elf.cpp in UPX 3.96. This flaw allows attackers to cause a denial of service (SEGV or buffer overflow and application crash) or possibly have unspecified other impacts via a crafted ELF. The highest threat from this vulnerability is to system availability.