CVSS v3
8.8
HIGH
EPSS Score
87.3%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
gdImageColorMatch in gd_color_match.c in the GD Graphics Library (aka LibGD) 2.2.5, as used in the imagecolormatch function in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.1, has a heap-based buffer overflow. This can be exploited by an attacker who is able to trigger imagecolormatch calls with crafted image data.
gdImageColorMatch in gd_color_match.c in the GD Graphics Library (aka LibGD) 2.2.5, as used in the imagecolormatch function in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.1, has a heap-based buffer overflow. This can be exploited by an attacker who is able to trigger imagecolormatch calls with crafted image data.
Active exploitation of CVE-2019-6977 has not been confirmed. The EPSS score is 87.3%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2019-6977 has a CVSS v3 base score of 8.8 (HIGH severity).
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Ranked by exploit probability (EPSS).