How severe is CVE-2014-4609?

CVE-2014-4609 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2014-4609 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-4609?

CVE-2014-4609 affects Libav. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2014-4609?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2014-4609 published?

CVE-2014-4609 was published on 2020-01-14 and last updated on 2026-06-17.

CVE-2014-4609

CVE-2014-4609 is a high-severity vulnerability in Libav with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-190.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-190
Affected product: Libav
Published: 2020-01-14
Last modified: 2026-06-17

Description

Integer overflow in the get_len function in libavutil/lzo.c in Libav before 0.8.13, 9.x before 9.14, and 10.x before 10.2 allows remote attackers to execute arbitrary code via a crafted Literal Run.

Frequently asked questions

What is CVE-2014-4609?: Integer overflow in the get_len function in libavutil/lzo.c in Libav before 0.8.13, 9.x before 9.14, and 10.x before 10.2 allows remote attackers to execute arbitrary code via a crafted Literal Run.
How severe is CVE-2014-4609?: CVE-2014-4609 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2014-4609 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-4609?: CVE-2014-4609 affects Libav. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2014-4609?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2014-4609 published?: CVE-2014-4609 was published on 2020-01-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:libav:libav:*:*:*:*:*:*:*:*

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