CVE-2020-12762

HIGH 7.8EPSS 1.9%

json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend.

CVSS v3.1: 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v3.1: 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v2.0: 6.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
EPSS: 1.90% chance of exploitation in the next 30 days, 78th percentile
Published: 2020-05-09
Updated: 2025-11-03

Proof-of-concept exploits (2)

References

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