CVE-2019-13617
njs through 0.3.3, used in NGINX, has a heap-based buffer over-read in nxt_vsprintf in nxt/nxt_sprintf.c during error handling, as demonstrated by an njs_regexp_literal call that leads to an njs_parser_lexer_error call and then an njs_parser_scope_error…
Does this matter?
Lower severity and a low EPSS score (1.31%). Track it; it rarely justifies an emergency change on its own.
Description
njs through 0.3.3, used in NGINX, has a heap-based buffer over-read in nxt_vsprintf in nxt/nxt_sprintf.c during error handling, as demonstrated by an njs_regexp_literal call that leads to an njs_parser_lexer_error call and then an njs_parser_scope_error call.
- CVSS 3.0
- 6.5 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 1.31% probability · 70th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- f5/njs
- Source
- cve@mitre.org
EPSS 1.3% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15093Permissions Required, Third Party Advisory
- https://github.com/nginx/njs/issues/174Exploit, Third Party Advisory
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15093Permissions Required, Third Party Advisory
- https://github.com/nginx/njs/issues/174Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.