CVE-2019-13617

Name: CVE-2019-13617
Creator: NVD / NIST
Published: 2019-07-16T17:15:12.753+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.31%

Last modified Jun 17, 2026

CVE-2019-13617 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.31% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

1.31%

66.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
F5	Njs	<= 0.3.3

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

Timeline

Published: Jul 16, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-13617?

How severe is CVE-2019-13617?

Severity scoring for CVE-2019-13617 is pending analysis. The EPSS model estimates a 1.31% probability of exploitation in the next 30 days.

How do I fix CVE-2019-13617?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-13617?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST