CVE-2017-7884: In Adam Kropelin adk0212 APC UPS Daemon through 3.14.14, the default installation of APCUPSD allows a local au

Q: How do I fix CVE-2017-7884?

apc ups daemon: upgrade to newer than 3.14.14. Exact commands for each OS are on this page.

Q: Is CVE-2017-7884 being exploited?

CVE-2017-7884 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2017-7884 affect?

CVE-2017-7884 affects apc ups daemon. Severity is high (CVSS 8.4). 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

Routine

HIGH 8.4UPGRADE

CVE-2017-7884 is a high-severity flaw (CVSS 8.4) affecting apc ups daemon. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.4 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 62%)
CISA exploited list	No
Weakness	CWE-427
Published	2017-06-16
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: apcupsd

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-06-16 13:29 UTCPublished CVE record published
2026-06-17 01:25 UTCUpdated Record last modified

apcupsd apc ups daemon UPGRADE

Affected: <= 3.14.14

Fixed in: newer than 3.14.14

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy apc-ups-daemon || rpm -q apc-ups-daemon || apc-ups-daemon --version

2. UPGRADE to newer than 3.14.14 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade apc-ups-daemon

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade apc-ups-daemon

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-7884?

apc ups daemon: upgrade to newer than 3.14.14. Exact commands for each OS are on this page.

Is CVE-2017-7884 being exploited?

CVE-2017-7884 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-7884 affect?

CVE-2017-7884 affects apc ups daemon. Severity is high (CVSS 8.4). 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

How urgent is CVE-2017-7884?

Priority 39/100. High severity

References

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