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High severity7.8NVD Advisory· Published Aug 25, 2022· Updated Jun 17, 2026

CVE-2020-27799

CVE-2020-27799

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

2

Upx/Upx2 versions
cpe:2.3:a:upx:upx:4.0.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:upx:upx:4.0.0:*:*:*:*:*:*:*
- (no CPE)range: =4.0.0

Patches

Vulnerability mechanics

References

1

github.com/upx/upx/issues/391nvdExploitIssue TrackingThird Party Advisory

News mentions

0

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