CVE-2017-6363
CVSS v3
8.1
HIGH
EPSS Score
1.4 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
In the GD Graphics Library (aka LibGD) through 2.2.5, there is a heap-based buffer over-read in tiffWriter in gd_tiff.c. NOTE: the vendor says "In my opinion this issue should not have a CVE, since the GD and GD2 formats are documented to be 'obsolete, and should only be used for development and testing purposes.'
Technical details
- Published
- 2020-02-27
Frequently asked questions
What is CVE-2017-6363?
In the GD Graphics Library (aka LibGD) through 2.2.5, there is a heap-based buffer over-read in tiffWriter in gd_tiff.c. NOTE: the vendor says "In my opinion this issue should not have a CVE, since the GD and GD2 formats are documented to be 'obsolete, and should only be used for development and testing purposes.'
Is CVE-2017-6363 actively exploited?
Active exploitation of CVE-2017-6363 has not been confirmed. Its EPSS score was 1.4% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2017-6363?
CVE-2017-6363 has a CVSS v3 base score of 8.1 (HIGH severity).
Is CVE-2017-6363 affecting your environment?
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