CVE-2020-27799

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.

CVSS v3.1

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

EPSS

0.33% chance of exploitation in the next 30 days, 25th percentile

Published

2022-08-25

Updated

2024-08-04

Proof-of-concept exploits (1)

• upx/upx/issues/391

References

• CVE Record
• NVD entry

Related

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