How severe is CVE-2016-3076?

CVE-2016-3076 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2016-3076 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-3076?

CVE-2016-3076 primarily affects Python Pillow. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-3076?

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

When was CVE-2016-3076 published?

CVE-2016-3076 was published on 2017-04-24 and last updated on 2026-06-17.

CVE-2016-3076

CVE-2016-3076 is a medium-severity vulnerability in Python Pillow with a CVSS 3.x base score of 5.5. 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-119.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Python Pillow
Published: 2017-04-24
Last modified: 2026-06-17

Description

Heap-based buffer overflow in the j2k_encode_entry function in Pillow 2.5.0 through 3.1.1 allows remote attackers to cause a denial of service (memory corruption) via a crafted Jpeg2000 file.

Frequently asked questions

What is CVE-2016-3076?: Heap-based buffer overflow in the j2k_encode_entry function in Pillow 2.5.0 through 3.1.1 allows remote attackers to cause a denial of service (memory corruption) via a crafted Jpeg2000 file.
How severe is CVE-2016-3076?: CVE-2016-3076 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2016-3076 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-3076?: CVE-2016-3076 primarily affects Python Pillow. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-3076?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-3076 published?: CVE-2016-3076 was published on 2017-04-24 and last updated on 2026-06-17.

References

Affected products (19)

cpe:2.3:a:python:pillow:2.5.0:*:*:*:*:*:*:*
cpe:2.3:a:python:pillow:2.5.1:*:*:*:*:*:*:*
cpe:2.3:a:python:pillow:2.5.2:*:*:*:*:*:*:*
cpe:2.3:a:python:pillow:2.5.3:*:*:*:*:*:*:*
cpe:2.3:a:python:pillow:2.6.0:*:*:*:*:*:*:*
cpe:2.3:a:python:pillow:2.6.0:rc1:*:*:*:*:*:*
cpe:2.3:a:python:pillow:2.6.1:*:*:*:*:*:*:*
cpe:2.3:a:python:pillow:2.6.2:*:*:*:*:*:*:*
cpe:2.3:a:python:pillow:2.7.0:*:*:*:*:*:*:*
cpe:2.3:a:python:pillow:2.8.0:*:*:*:*:*:*:*
cpe:2.3:a:python:pillow:2.8.1:*:*:*:*:*:*:*
cpe:2.3:a:python:pillow:2.8.2:*:*:*:*:*:*:*
cpe:2.3:a:python:pillow:2.9.0:*:*:*:*:*:*:*
cpe:2.3:a:python:pillow:2.9.0:dev0:*:*:*:*:*:*
cpe:2.3:a:python:pillow:2.9.0:dev1:*:*:*:*:*:*
cpe:2.3:a:python:pillow:2.9.0:dev2:*:*:*:*:*:*
cpe:2.3:a:python:pillow:3.0.0:*:*:*:*:*:*:*
cpe:2.3:a:python:pillow:3.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:python:pillow:3.1.0:*:*:*:*:*:*:*

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