CVE-2017-6427: A Buffer Overflow was discovered in EvoStream Media Server 1.7.1

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HIGH 7.5REMOTEDOWNGRADE

CVE-2017-6427 is a high-severity flaw (CVSS 7.5) affecting media server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A Buffer Overflow was discovered in EvoStream Media Server 1.7.1. A crafted HTTP request with a malicious header will cause a crash. An example attack methodology may include a long message-body in a GET request.

Why this priority

High severity
EPSS top 6%: very likely to be exploited
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	7.2% (top 6%)
CISA exploited list	No
Weakness	CWE-119
Published	2017-03-10
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: evostream

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

Am I affected?

Timeline

2017-03-10 10:59 UTCPublished CVE record published
2026-06-17 01:22 UTCUpdated Record last modified

evostream media server DOWNGRADE

Affected: 1.7.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.7.1

1. Check installed version

apt-cache policy media-server || rpm -q media-server || media-server --version

2. No fixed release: DOWNGRADE to a release before 1.7.1 (Debian / Ubuntu)

apt-cache madison media-server sudo apt install media-server=<VERSION_BEFORE_1.7.1> sudo apt-mark hold media-server

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

dnf --showduplicates list media-server sudo dnf downgrade media-server-<VERSION_BEFORE_1.7.1> sudo dnf versionlock add media-server

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Evostream Media Server 1.7.1 (x64) - Denial of Service

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-2017-6427?

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

Is CVE-2017-6427 being exploited?

CVE-2017-6427 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-2017-6427 affect?

CVE-2017-6427 affects media server. Severity is high (CVSS 7.5). A Buffer Overflow was discovered in EvoStream Media Server 1.7.1. A crafted HTTP request with a malicious header will cause a crash. An example attack methodology may include a long message-body in a GET request.

How urgent is CVE-2017-6427?

Priority 60/100. High severity; EPSS top 6%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

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References

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