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.
CVE-2016-3076
MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence
This medium-severity CVE scores 5.5 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 36% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, nvd
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 3%CVSS: 5.5Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.5
- EG Score
- 5.5(medium)
- EPSS
- 83.3%
- KEV
- Not listed
Published
April 24, 2017
Last Modified
May 13, 2026
References (6)
- secalert@redhathttp://pillow.readthedocs.io/en/4.1.x/releasenotes/3.1.2.html
- secalert@redhathttp://www.securityfocus.com/bid/98042
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=1321929
- af854a3a-2127-422b-91ae-364da2661108http://pillow.readthedocs.io/en/4.1.x/releasenotes/3.1.2.html
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/98042
- af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1321929
Frequently asked(5)
What is CVE-2016-3076?
CVE-2016-3076 is a medium vulnerability published on April 24, 2017. Heap-based buffer overflow in the j2kencodeentry 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.
When was CVE-2016-3076 disclosed?
CVE-2016-3076 was first published in the National Vulnerability Database on April 24, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-3076 actively exploited?
CVE-2016-3076 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 83.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2016-3076?
CVE-2016-3076 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2016-3076?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-3076, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2016-3076
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