CVE-2019-12207
CVSS v3
9.8
CRITICAL
EPSS Score
1.8 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
njs through 0.3.1, used in NGINX, has a heap-based buffer over-read in nxt_utf8_decode in nxt/nxt_utf8.c.
Technical details
- Published
- 2019-05-20
Frequently asked questions
What is CVE-2019-12207?
njs through 0.3.1, used in NGINX, has a heap-based buffer over-read in nxt_utf8_decode in nxt/nxt_utf8.c.
Is CVE-2019-12207 actively exploited?
Active exploitation of CVE-2019-12207 has not been confirmed. Its EPSS score was 1.8% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2019-12207?
CVE-2019-12207 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2019-12207 affecting your environment?
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