CVE-2020-24074: The decode program in silk-v3-decoder Version:20160922 Build By kn007 does not strictly check data, resulting

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2020-24074 is a critical-severity flaw (CVSS 9.8) affecting silk-v3-decoder. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The decode program in silk-v3-decoder Version:20160922 Build By kn007 does not strictly check data, resulting in a buffer overflow.

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	2.0% (top 19%)
CISA exploited list	No
Weakness	CWE-20, CWE-119
Published	2020-09-09
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: silk-v3-decoder project

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

Am I affected?

Timeline

2020-09-09 14:15 UTCPublished CVE record published
2026-06-17 03:05 UTCUpdated Record last modified

silk-v3-decoder project silk-v3-decoder DOWNGRADE

Affected: 20160922

Fixed in: no fixed release known

Safe to downgrade to: a release before 20160922

1. Check installed version

apt-cache policy silk-v3-decoder || rpm -q silk-v3-decoder || silk-v3-decoder --version

2. No fixed release: DOWNGRADE to a release before 20160922 (Debian / Ubuntu)

apt-cache madison silk-v3-decoder sudo apt install silk-v3-decoder=<VERSION_BEFORE_20160922> sudo apt-mark hold silk-v3-decoder

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

dnf --showduplicates list silk-v3-decoder sudo dnf downgrade silk-v3-decoder-<VERSION_BEFORE_20160922> sudo dnf versionlock add silk-v3-decoder

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-2020-24074?

silk-v3-decoder: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-24074 being exploited?

CVE-2020-24074 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-2020-24074 affect?

CVE-2020-24074 affects silk-v3-decoder. Severity is critical (CVSS 9.8). The decode program in silk-v3-decoder Version:20160922 Build By kn007 does not strictly check data, resulting in a buffer overflow.

How urgent is CVE-2020-24074?

Priority 65/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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