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Unrated severityOSV Advisory· Published Dec 14, 2025· Updated Dec 18, 2025

CVE-2025-67896

CVE-2025-67896

Description

Exim before 4.99.1, with certain non-default rate-limit configurations, allows a remote heap-based buffer overflow because database records are cast directly to internal structures without validation.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

2
  • Exim/EximOSV2 versions
    DEVEL_PDKIM_START, exim-4.90devstart, exim-4.92, …+ 1 more
    • (no CPE)range: DEVEL_PDKIM_START, exim-4.90devstart, exim-4.92, …
    • (no CPE)range: <4.99.1

Patches

Vulnerability mechanics

References

3

News mentions

0

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