CISA ADP Vulnrichment

Why this deserves its current priority

CVSS is 7.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Affected scope and exposure questions

The current feed maps Exim/Exim (generic). Check affected ranges and fixed versions before updating.

Recommended response

1. 1Check inventory. Check lockfiles and deployed manifests for Exim/Exim.
2. 2Review the reported fix. Update Exim/Exim to 4.100.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

1. Published upstream

   Sep 19, 2026

   Evidence: source:cvelist:source_dates:source-dates:record

2. Source modified

   Sep 22, 2026

   Evidence: source:cvelist:source_dates:source-dates:record

3. First seen by HOL

   Sep 19, 2026

Sources and claim methodology

• Source referencelists.exim.org

Related CVEs

• Off-by-one Error, Out-of-bounds Write vulnerability in RTI Connext Professional (Core Libraries) allows Overflow Buffers.Also CWE-787
• Double Free vulnerability in RTI Connext Professional (Core Libraries) allows File Manipulation.Same generic ecosystem
• Out-of-bounds Read, Function Call With Incorrect Number of Arguments, Access of Resource Using Incompatible Type ('Type Confusion') vulnerability in RTI Connext Professional (Core Libraries) allows Overread Buffers.Same generic ecosystem
• Heap-based Buffer Overflow vulnerability in RTI Connext Professional (Core Libraries) allows Overflow Buffers.Same generic ecosystem
• Out-of-bounds Read, Function Call With Incorrect Number of Arguments, Access of Resource Using Incompatible Type ('Type Confusion') vulnerability in RTI Connext Professional (Core Libraries) allows Overread Buffers.Same generic ecosystem
• Incorrect Calculation vulnerability in RTI Connext Professional (Core Libraries) allows Abuse Existing Functionality.Same generic ecosystem