Medium severity5.5NVD Advisory· Published Aug 18, 2022· Updated Jun 17, 2026

CVE-2020-27790

Description

A floating point exception issue was discovered in UPX in PackLinuxElf64::invert_pt_dynamic() 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. The highest impact is to Availability.

AI Insight

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

Affected products

Upx/Upx3 versions
cpe:2.3:a:upx:upx:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:upx:upx:*:*:*:*:*:*:*:*range: <3.96
- (no CPE)
- (no CPE)

Patches

Vulnerability mechanics

References

github.com/upx/upx/commit/eb90eab6325d009004ffb155e3e33f22d4d3ca26nvdPatchThird Party Advisory
github.com/upx/upx/issues/331nvdExploitIssue TrackingPatchThird Party Advisory

News mentions

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