Is CVE-2017-14056 in the CISA KEV catalog?

No. CVE-2017-14056 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-14056?

CVE-2017-14056 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2017-14056?

CVE-2017-14056 has an EPSS score of 1.82% (76th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-14056?

Upgrade ffmpeg on debian 11 to 7:3.3.4-1 or later.

CVE & CISA-KEV Catalog

CVE-2017-14056

MEDIUMEPSS 76th pctl

6.5

CVSS v3

NVD

Description

In libavformat/rl2.c in FFmpeg 3.3.3, a DoS in rl2_read_header() due to lack of an EOF (End of File) check might cause huge CPU and memory consumption. When a crafted RL2 file, which claims a large "frame_count" field in the header but does not contain sufficient backing data, is provided, the loops (for offset and size tables) would consume huge CPU and memory resources, since there is no EOF check inside these loops.

CWE-834

How to fix

Remediation Available

ffmpegDebian

Fixed in:7:3.3.4-1CVE-2017-14056

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploit Intelligence

1.82%probability of exploitation in 30 days

76thpercentile

Elevated risk: more likely to be exploited than 76% of all known CVEs.

References

Patch1

github.com

Other references3

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.