Numeric Range Comparison Without Minimum Check Affecting exim/exim package, versions [4.88.0,4.99.4)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-EXIMEXIM-17111829
- published31 May 2026
- disclosed30 May 2026
- creditUnknown
Introduced: 30 May 2026
NewCVE-2026-48840 (opens in a new tab)How to fix?
Upgrade exim/exim to version 4.99.4 or higher.
Overview
Affected versions of this package are vulnerable to Numeric Range Comparison Without Minimum Check in certain proxy configurations when handling short payloads. An attacker can obtain sensitive information from uninitialized stack memory by sending specially crafted requests. This is only exploitable if the mail server is configured to operate as a proxy.