CVE-2012-0839

CVE-2012-0839 is a medium-severity vulnerability in Inria Ocaml with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Description

OCaml 3.12.1 and earlier computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table.

Frequently asked questions

What is CVE-2012-0839?
OCaml 3.12.1 and earlier computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table.
How severe is CVE-2012-0839?
CVE-2012-0839 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2012-0839 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-0839?
CVE-2012-0839 primarily affects Inria Ocaml. In total, 21 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-0839?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-0839 published?
CVE-2012-0839 was published on 2012-02-08 and last updated on 2026-06-16.

References

Affected products (21)

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