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CVE-2026-28364

A flaw was found in OCaml. A remote attacker could exploit a buffer over-read vulnerability during Marshal deserialization by providing specially crafted data. This issue stems from missing bounds validation in the readblock() function, which performs unbounded memory copy operations. Successful exploitation could lead to remote code execution.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:dd0d4167e9dc9dd7d5aec392eaab58b4b452a5f260a97a29eb3e24025af70e4b
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 7 assertions

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unknown","packageName":"ocaml","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/adp/1/affected/1

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"affected","packageName":"ocaml","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/adp/1/affected/2

{"defaultStatus":"unaffected","packageURL":"pkg:opam/ocaml","product":"OCaml","vendor":"OCaml","versions":[{"lessThan":"4.14.3","status":"affected","version":"0","versionType":"semver"},{"lessThan":"5.4.1","status":"affected","version":"5.0.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/cna/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"affected","packageName":"ocaml","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/adp/1/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"affected","packageName":"ocaml","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/adp/1/affected/3

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"ocaml","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/adp/1/affected/4

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:hummingbird:1"],"defaultStatus":"unaffected","packageName":"ocaml","product":"Red Hat Hardened Images","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/adp/1/affected/5
cwe · 2 assertions

{"cweId":"CWE-126","description":"CWE-126 Buffer Over-read","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-125","description":"Out-of-bounds Read","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/adp/1/problemTypes/0/descriptions/0

Affected products and versions

7 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unknown","packageName":"ocaml","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/adp/1/affected/1
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"affected","packageName":"ocaml","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/adp/1/affected/2
{"defaultStatus":"unaffected","packageURL":"pkg:opam/ocaml","product":"OCaml","vendor":"OCaml","versions":[{"lessThan":"4.14.3","status":"affected","version":"0","versionType":"semver"},{"lessThan":"5.4.1","status":"affected","version":"5.0.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"affected","packageName":"ocaml","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/adp/1/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"affected","packageName":"ocaml","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/adp/1/affected/3
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"ocaml","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/adp/1/affected/4
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:hummingbird:1"],"defaultStatus":"unaffected","packageName":"ocaml","product":"Red Hat Hardened Images","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/adp/1/affected/5

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":7.9,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/cna/metrics/0/cvssV3_1
{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":7.9,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/adp/1/metrics/1/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-126","description":"CWE-126 Buffer Over-read","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-125","description":"Out-of-bounds Read","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/adp/1/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-28364"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/adp/1/references/0
{"name":"RHBZ#2443348","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2443348"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/adp/1/references/1
{"url":"https://github.com/ocaml/security-advisories/blob/generated-osv/2026/OSEC-2026-01.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/cna/references/0
{"url":"https://osv.dev/vulnerability/OSEC-2026-01"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/cna/references/1
{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-28364.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bc367bd3295c094208e84a499b3873510e88feb6075064ab1ac029cdfd357e04 · sha256:2986bdf903eaa7be… · /containers/adp/1/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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