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CVE-2017-16869

25
FAUCET Score

CVE-2017-16869 describes an invalid memory access vulnerability in UPX 3.94, specifically within the p_mach.cpp file's canPack and unpack functions, triggered by a crafted Mach-O file. This could lead to a denial of service (application crash) or potentially other unspecified impacts. The vulnerability is rated High severity (CVSS 7.8) due to its potential for high impact on confidentiality, integrity, and availability, requiring user interaction (UI:R) but with low attack complexity (AC:L). Despite the high CVSS score, there is no known exploit code available (Metasploit, Nuclei, ExploitDB: None), it is not listed on the KEV catalog, and there is no community discussion or media coverage, indicating a lack of active exploitation or public attention.

Impacted Technologies

VendorProductVersion(s)CPE
3.94CPE matchmatch criteria
cpe:2.3:a:upx:upx:3.94:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.00%
Probability of exploitation in next 30 days
EPSS Percentile
59.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0100 is in the 56th percentile among its peer group of 11,616 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / upx/upx/issues/146
Third Party Advisory