CVE-2017-16869 — p_mach.cpp in UPX 3.94 allows remote attackers to cause a denial of service (invalid memory access and application crash) or possibly have unspecified other impact via a crafted Mach-O file, related to canPack and unpack functions

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HIGH

p_mach.cpp in UPX 3.94 allows remote attackers to cause a denial of service (invalid memory access and application crash) or possibly have unspecified other impact via a crafted Mach-O file, related to canPack and unpack functions

Published Nov 17, 2017

7.8

HIGH

CVSS 3.0

EPSS 1.00%

Description

p_mach.cpp in UPX 3.94 allows remote attackers to cause a denial of service (invalid memory access and application crash) or possibly have unspecified other impact via a crafted Mach-O file, related to canPack and unpack functions. NOTE: the vendor has stated "there is no security implication whatsoever.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.00% 0.01005

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.01005

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Table of values (13 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	1.00% (0.01005)	61.64th	v5 (v2026.06.15)
Sep 20, 2026	1.00% (0.01005)	61.47th	v5 (v2026.06.15)
Jul 20, 2024	0.25% (0.00247)	65.08th	v3 (v2023.03.01)
Apr 3, 2024	0.25% (0.00247)	64.12th	v3 (v2023.03.01)
Feb 21, 2024	0.22% (0.00223)	59.72th	v3 (v2023.03.01)
Dec 3, 2023	0.21% (0.00212)	58.86th	v3 (v2023.03.01)
Oct 28, 2023	0.18% (0.00176)	54.64th	v3 (v2023.03.01)
Sep 27, 2023	0.15% (0.00149)	50.53th	v3 (v2023.03.01)
Mar 7, 2023	0.12% (0.00124)	45.11th	v3 (v2023.03.01)
Mar 6, 2023	1.05% (0.01055)	52.13th	v2 (v2022.01.01)
Feb 4, 2022	1.05% (0.01055)	27.52th	v2 (v2022.01.01)
Feb 3, 2022	0.65% (0.00651)	18.22th	v5 (v2026.06.15)
Apr 14, 2021	0.65% (0.00651)	0.00th	v1

Weaknesses (1)

CWE-119

Buffer Overflow

References (1)

https://github.com/upx/upx/issues/146
x_refsource_MISCThird Party Advisory

Link	Providers	Tags
https://github.com/upx/upx/issues/146		x_refsource_MISCThird Party Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Nov 17, 2017

Updated Aug 5, 2024

Reserved Nov 17, 2017

Link CVE-2017-16869

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2017-16869

Red Hat

Severity n/a

Public date n/a

Links CVE-2017-16869