CVE-2019-1010306: Slanger 0.6.0 is affected by: Remote Code Execution (RCE)

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2019-1010306 is a critical-severity flaw (CVSS 9.8) affecting slanger. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Slanger 0.6.0 is affected by: Remote Code Execution (RCE). The impact is: A remote attacker can execute arbitrary commands by sending a crafted request to the server. The component is: Message handler & request validator. The attack vector is: Remote unauthenticated. The fixed version is: after commit 5267b455caeb2e055cccf0d2b6a22727c111f5c3.

Why this priority

Critical severity
EPSS top 9%: very likely to be exploited
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	4.0% (top 9%)
CISA exploited list	No
Weakness	CWE-502
Published	2019-07-15
Last modified	2026-06-17

Publisher (CNA): DWF · Vendor: teller

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

Am I affected?

Timeline

2019-07-15 15:15 UTCPublished CVE record published
2026-06-17 02:09 UTCUpdated Record last modified

teller slanger DOWNGRADE

Affected: 0.6.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.6.0

1. Check installed version

apt-cache policy slanger || rpm -q slanger || slanger --version

2. No fixed release: DOWNGRADE to a release before 0.6.0 (Debian / Ubuntu)

apt-cache madison slanger sudo apt install slanger=<VERSION_BEFORE_0.6.0> sudo apt-mark hold slanger

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

dnf --showduplicates list slanger sudo dnf downgrade slanger-<VERSION_BEFORE_0.6.0> sudo dnf versionlock add slanger

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-2019-1010306?

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

Is CVE-2019-1010306 being exploited?

CVE-2019-1010306 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-2019-1010306 affect?

CVE-2019-1010306 affects slanger. Severity is critical (CVSS 9.8). Slanger 0.6.0 is affected by: Remote Code Execution (RCE). The impact is: A remote attacker can execute arbitrary commands by sending a crafted request to the server. The component is: Message handler & request validator. The attack vector

How urgent is CVE-2019-1010306?

Priority 62/100. Critical severity; EPSS top 9%: very likely to be exploited; Remotely exploitable, no login, no user action

References

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