FKIE_CVE-2026-42009
Vulnerability from fkie_nvd - Published: 2026-05-18 13:16 - Updated: 2026-06-17 13:20
Severity
Summary
A flaw was found in gnutls. A remote attacker could exploit an issue in the Datagram Transport Layer Security (DTLS) packet reordering logic. The comparator function, responsible for ordering DTLS packets by sequence numbers, did not correctly handle packets with duplicate sequence numbers. This could lead to unstable packet ordering or undefined behavior, resulting in a denial of service.
References
| URL | Tags | ||
|---|---|---|---|
| secalert@redhat.com | https://access.redhat.com/errata/RHSA-2026:13274 | Third Party Advisory | |
| secalert@redhat.com | https://access.redhat.com/errata/RHSA-2026:20611 | Third Party Advisory | |
| secalert@redhat.com | https://access.redhat.com/errata/RHSA-2026:20612 | Third Party Advisory | |
| secalert@redhat.com | https://access.redhat.com/errata/RHSA-2026:20613 | Third Party Advisory | |
| secalert@redhat.com | https://access.redhat.com/errata/RHSA-2026:26319 | ||
| secalert@redhat.com | https://access.redhat.com/errata/RHSA-2026:26409 | ||
| secalert@redhat.com | https://access.redhat.com/security/cve/CVE-2026-42009 | Third Party Advisory | |
| secalert@redhat.com | https://bugzilla.redhat.com/show_bug.cgi?id=2467279 | Issue Tracking, Third Party Advisory |
Impacted products
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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