CVE-2020-6095: An exploitable denial of service vulnerability exists in the GstRTSPAuth functionality of GStreamer/gst-rtsp-s

This week

HIGH 7.5REMOTEDOWNGRADEDOWNGRADEMITIGATE

CVE-2020-6095 is a high-severity flaw (CVSS 7.5) affecting gst-rtsp-server, backports sle, leap. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An exploitable denial of service vulnerability exists in the GstRTSPAuth functionality of GStreamer/gst-rtsp-server 1.14.5. A specially crafted RTSP setup request can cause a null pointer deference resulting in denial-of-service. An attacker can send a malicious packet to trigger this vulnerability.

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	2.9% (top 13%)
CISA exploited list	No
Weakness	CWE-690, CWE-476
Published	2020-03-27
Last modified	2026-06-17

Publisher (CNA): Talos · Vendor: gstreamer project · opensuse

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

Am I affected?

Timeline

2020-03-27 20:15 UTCPublished CVE record published
2026-06-17 03:22 UTCUpdated Record last modified

gstreamer project gst-rtsp-server DOWNGRADE

Affected: 1.14.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.14.5

1. Check installed version

apt-cache policy gst-rtsp-server || rpm -q gst-rtsp-server || gst-rtsp-server --version

2. No fixed release: DOWNGRADE to a release before 1.14.5 (Debian / Ubuntu)

apt-cache madison gst-rtsp-server sudo apt install gst-rtsp-server=<VERSION_BEFORE_1.14.5> sudo apt-mark hold gst-rtsp-server

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

dnf --showduplicates list gst-rtsp-server sudo dnf downgrade gst-rtsp-server-<VERSION_BEFORE_1.14.5> sudo dnf versionlock add gst-rtsp-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.

opensuse backports sle DOWNGRADE

Affected: 15.0 sp1

Fixed in: no fixed release known

Safe to downgrade to: a release before 15.0

1. Check installed version

apt-cache policy backports-sle || rpm -q backports-sle || backports-sle --version

2. No fixed release: DOWNGRADE to a release before 15.0 (Debian / Ubuntu)

apt-cache madison backports-sle sudo apt install backports-sle=<VERSION_BEFORE_15.0> sudo apt-mark hold backports-sle

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

dnf --showduplicates list backports-sle sudo dnf downgrade backports-sle-<VERSION_BEFORE_15.0> sudo dnf versionlock add backports-sle

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.

opensuse leap MITIGATE

Affected: 15.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 15.1

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2020-6095?

gst-rtsp-server: downgrade or apply the listed mitigation; backports sle: downgrade or apply the listed mitigation; leap: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-6095 being exploited?

CVE-2020-6095 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-2020-6095 affect?

CVE-2020-6095 affects gst-rtsp-server, backports sle, leap. Severity is high (CVSS 7.5). An exploitable denial of service vulnerability exists in the GstRTSPAuth functionality of GStreamer/gst-rtsp-server 1.14.5. A specially crafted RTSP setup request can cause a null pointer deference resulting in denial-of-service. An attacke

How urgent is CVE-2020-6095?

Priority 58/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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