CVE-2021-30500
7.8
HIGH
CVSS 3.1
EPSS 0.41%
Description
Null pointer dereference was found in upx PackLinuxElf::canUnpack() in p_lx_elf.cpp,in version UPX 4.0.0. That allow attackers to execute arbitrary code and cause a denial of service via a crafted file.
How to fix CVE-2021-30500
No fixed version has been published yet. Mitigate by removing the affected package or applying upstream guidance from the references below.
- Debian/upx-ucl—no fix listed
Is CVE-2021-30500 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |