CVE-2019-13285: CoSoSys Endpoint Protector 5.1.0.2 allows Host Header Injection.

This week

HIGH 7.5REMOTEDOWNGRADE

CVE-2019-13285 is a high-severity flaw (CVSS 7.5) affecting endpoint protector. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

CoSoSys Endpoint Protector 5.1.0.2 allows Host Header Injection.

Why this priority

High 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	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-74
Published	2020-05-04
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: cososys

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

Am I affected?

Timeline

2020-05-04 14:15 UTCPublished CVE record published
2026-06-17 02:16 UTCUpdated Record last modified

cososys endpoint protector DOWNGRADE

Affected: 5.1.0.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.1.0.2

1. Check installed version

apt-cache policy endpoint-protector || rpm -q endpoint-protector || endpoint-protector --version

2. No fixed release: DOWNGRADE to a release before 5.1.0.2 (Debian / Ubuntu)

apt-cache madison endpoint-protector sudo apt install endpoint-protector=<VERSION_BEFORE_5.1.0.2> sudo apt-mark hold endpoint-protector

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

dnf --showduplicates list endpoint-protector sudo dnf downgrade endpoint-protector-<VERSION_BEFORE_5.1.0.2> sudo dnf versionlock add endpoint-protector

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-2019-13285?

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

Is CVE-2019-13285 being exploited?

CVE-2019-13285 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-2019-13285 affect?

CVE-2019-13285 affects endpoint protector. Severity is high (CVSS 7.5). CoSoSys Endpoint Protector 5.1.0.2 allows Host Header Injection.

How urgent is CVE-2019-13285?

Priority 52/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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