Unrated severityNVD Advisory· Published Feb 27, 2026· Updated Feb 27, 2026
CVE-2026-28364
CVE-2026-28364
Description
In OCaml before 4.14.3 and 5.x before 5.4.1, a buffer over-read in Marshal deserialization (runtime/intern.c) enables remote code execution through a multi-phase attack chain. The vulnerability stems from missing bounds validation in the readblock() function, which performs unbounded memcpy() operations using attacker-controlled lengths from crafted Marshal data.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
15- osv-coords13 versionspkg:rpm/opensuse/ocaml&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/ocaml&distro=openSUSE%20Leap%2016.0pkg:rpm/suse/ocaml&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/ocaml&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/ocaml&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOSpkg:rpm/suse/ocaml&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSSpkg:rpm/suse/ocaml&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/ocaml&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/ocaml&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/ocaml&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/ocaml&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/ocaml&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5pkg:rpm/suse/ocaml&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6
< 4.14.2-150600.3.3.1+ 12 more
- (no CPE)range: < 4.14.2-150600.3.3.1
- (no CPE)range: < 4.14.2-160000.4.1
- (no CPE)range: < 4.05.0-150200.15.3.1
- (no CPE)range: < 4.05.0-150200.15.3.1
- (no CPE)range: < 4.05.0-150200.15.3.1
- (no CPE)range: < 4.05.0-150200.15.3.1
- (no CPE)range: < 4.14.2-150600.3.3.1
- (no CPE)range: < 4.05.0-150200.15.3.1
- (no CPE)range: < 4.05.0-150200.15.3.1
- (no CPE)range: < 4.14.2-150600.3.3.1
- (no CPE)range: < 4.05.0-150200.15.3.1
- (no CPE)range: < 4.05.0-150200.15.3.1
- (no CPE)range: < 4.14.2-150600.3.3.1
Patches
Vulnerability mechanics
References
2News mentions
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