CVE-2020-18170: An issue in the SeChangeNotifyPrivilege component of Abloy Key Manager Version 7.14301.0.0 allows attackers to

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2020-18170 is a critical-severity flaw (CVSS 9.8) affecting key manager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue in the SeChangeNotifyPrivilege component of Abloy Key Manager Version 7.14301.0.0 allows attackers to escalate privileges via a change in permissions.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.3% (top 30%)
CISA exploited list	No
Published	2021-07-26
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: abloy

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

Am I affected?

Timeline

2021-07-26 20:15 UTCPublished CVE record published
2026-06-17 02:59 UTCUpdated Record last modified

abloy key manager DOWNGRADE

Affected: 7.14301.0.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.14301.0.0

1. Check installed version

apt-cache policy key-manager || rpm -q key-manager || key-manager --version

2. No fixed release: DOWNGRADE to a release before 7.14301.0.0 (Debian / Ubuntu)

apt-cache madison key-manager sudo apt install key-manager=<VERSION_BEFORE_7.14301.0.0> sudo apt-mark hold key-manager

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list key-manager sudo dnf downgrade key-manager-<VERSION_BEFORE_7.14301.0.0> sudo dnf versionlock add key-manager

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2020-18170?

key manager: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-18170 being exploited?

CVE-2020-18170 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-2020-18170 affect?

CVE-2020-18170 affects key manager. Severity is critical (CVSS 9.8). An issue in the SeChangeNotifyPrivilege component of Abloy Key Manager Version 7.14301.0.0 allows attackers to escalate privileges via a change in permissions.

How urgent is CVE-2020-18170?

Priority 62/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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