How severe is CVE-2017-17127?

CVE-2017-17127 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2017-17127 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-17127?

CVE-2017-17127 affects Libav. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-17127?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-17127 published?

CVE-2017-17127 was published on 2017-12-04 and last updated on 2026-06-17.

CVE-2017-17127

CVE-2017-17127 is a medium-severity vulnerability in Libav with a CVSS 3.x base score of 6.5. 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-476.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Libav
Published: 2017-12-04
Last modified: 2026-06-17

Description

The vc1_decode_frame function in libavcodec/vc1dec.c in Libav 12.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted file.

Frequently asked questions

What is CVE-2017-17127?: The vc1_decode_frame function in libavcodec/vc1dec.c in Libav 12.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted file.
How severe is CVE-2017-17127?: CVE-2017-17127 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2017-17127 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-17127?: CVE-2017-17127 affects Libav. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-17127?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-17127 published?: CVE-2017-17127 was published on 2017-12-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:libav:libav:12.2:*:*:*:*:*:*:*

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