CVSS v3
9.8
CRITICAL
EPSS Score
1.3 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
struct2json before 2020-11-18 is affected by a Buffer Overflow because strcpy is used for S2J_STRUCT_GET_string_ELEMENT.
Technical details
- Published
- 2020-12-26
Frequently asked questions
What is CVE-2020-29203?
struct2json before 2020-11-18 is affected by a Buffer Overflow because strcpy is used for S2J_STRUCT_GET_string_ELEMENT.
Is CVE-2020-29203 actively exploited?
Active exploitation of CVE-2020-29203 has not been confirmed. Its EPSS score was 1.3% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2020-29203?
CVE-2020-29203 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2020-29203 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.
No credit card required · 500 free checks/month · Free API key
Other 2020 vulnerabilities worth triaging
Ranked by exploit probability (EPSS).