What is CVE-2017-9779?

CVE-2017-9779 is a high-severity vulnerability in Ocaml. CVSS score: 7.8/10. Published 2017-09-07.

How severe is CVE-2017-9779?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2017-9779 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Ocaml

CVE-2017-9779

OCaml compiler allows attackers to have unspecified impact via unknown vectors, a similar issue to CVE-2017-9772 "but with much less impact."

Published 2017-09-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (45.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Ocaml

Public proof-of-concept exploits

homjxi0e/CVE-2017-9779

References

caml.inria.fr/mantis/view.php (Third Party Advisory, Issue Tracking)
sympa.inria.fr/sympa/arc/caml-list/2017-06/msg00094.html (mailing-list, Mailing List, Third Party Advisory, Release Notes)

Frequently asked questions

What is CVE-2017-9779?: CVE-2017-9779 is a high-severity vulnerability in Ocaml. CVSS score: 7.8/10. Published 2017-09-07.
How severe is CVE-2017-9779?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2017-9779 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.