CVE-2020-27798

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.

Affected

upx

CVSS v3.1 NVD

5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS

0.29% chance of exploitation in the next 30 days, 20th percentile

Published

2022-08-25

Updated

2024-08-04

Proof-of-concept exploits (1)

• upx/upx/issues/39617955★ · 2026-10-17

References

• CVE Record
• NVD entry

Related

• CVE-2018-11243
• CVE-2019-14295
• CVE-2019-14296
• CVE-2019-20021
• CVE-2019-20051
• CVE-2019-20053