HOMEVULNERABILITIESCVE-2017-7884
HIGH

CVE-2017-7884

CWE-427Published: June 16, 2017· Updated: Jun 17, 2026

8.4
CVSS v3.1

Official Description

In Adam Kropelin adk0212 APC UPS Daemon through 3.14.14, the default installation of APCUPSD allows a local authenticated, but unprivileged, user to run arbitrary code with elevated privileges by replacing the service executable apcupsd.exe with a malicious executable that will run with SYSTEM privileges at startup. This occurs because of "RW NT AUTHORITY\Authenticated Users" permissions for %SYSTEMDRIVE%\apcupsd\bin\apcupsd.exe.

NVD Source

Technical Analysis

CVE-2017-7884 requires local access, meaning attackers must already have a foothold on the target system.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.4.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

apcupsd1 product(s)
apc ups daemon
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://seclists.org/fulldisclosure/2017/Jun/20
ADVISORYhttp://www.securityfocus.com/bid/99092
ADVISORYhttp://seclists.org/fulldisclosure/2017/Jun/20
ADVISORYhttp://www.securityfocus.com/bid/99092

All References (6)

→
http://seclists.org/fulldisclosure/2017/Jun/20Mailing List · Third Party Advisory
→
http://www.securityfocus.com/bid/99092Third Party Advisory · VDB Entry
→
http://www.securitytracker.com/id/1038707
→
http://seclists.org/fulldisclosure/2017/Jun/20Mailing List · Third Party Advisory
→
http://www.securityfocus.com/bid/99092Third Party Advisory · VDB Entry
→
http://www.securitytracker.com/id/1038707

Quick Facts

CVE IDCVE-2017-7884
CVSS Score8.4 / 10
SeverityHIGH
WeaknessCWE-427
CISA KEVNo
Affected1 vendor(s)
PublishedJun 16, 2017

Related CVEs (CWE-427)

CVE-2025-4981
9.9
CVE-2017-3097
9.8
CVE-2017-6517
9.8
CVE-2017-3092
9.8
CVE-2017-3090
9.8
CVE-2018-12805
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-7884 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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