CVE-2026-33845

CVE-2026-33845 · Gnutls: gnutls: denial of service via dtls zero-length fragment

This page contains facts from public vulnerability sources. Check the original advisory before updating.

This page shows selected source facts. See the linked advisories for the complete description and affected versions.

A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an integer underflow during reassembly and resulting in an out-of-bounds read. This issue is remotely exploitable and may cause information disclosure or denial of service.

CVSS 7.5 · High · EPSS 2.1% · Fix available

Published: 2026-04-30T17:41:34.076Z
Updated: 2026-10-14T19:09:48.065Z

Stack: system

Affected products and versions

red hat enterprise linux 10
Versions
- ≥ 0:3.8.10-4.el10_2: Not affected (rpm)
No fix published
red hat enterprise linux 10.0 extended update support
Versions
- ≥ 0:3.8.9-9.el10_0.19: Not affected (rpm)
No fix published
red hat enterprise linux 7 extended lifecycle support
Versions
- ≥ 0:3.3.29-9.el7_9.1: Not affected (rpm)
No fix published
red hat enterprise linux 8
Versions
- ≥ 0:3.6.16-8.el8_10.6: Not affected (rpm)
No fix published
red hat enterprise linux 8.4 advanced mission critical update support
Versions
- ≥ 0:3.6.14-10.el8_4.1: Not affected (rpm)
No fix published
red hat enterprise linux 8.4 advanced mission critical update support
Versions
- ≥ 0:4.13-3.el8_4.1: Not affected (rpm)
No fix published
red hat enterprise linux 8.4 extended update support long-life add-on
Versions
- ≥ 0:3.6.14-10.el8_4.1: Not affected (rpm)
No fix published
red hat enterprise linux 8.4 extended update support long-life add-on
Versions
- ≥ 0:4.13-3.el8_4.1: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 advanced mission critical update support
Versions
- ≥ 0:3.6.16-5.el8_6.5: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 advanced mission critical update support
Versions
- ≥ 0:4.13-3.el8_6.2: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 extended update support long-life add-on
Versions
- ≥ 0:3.6.16-5.el8_6.5: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 extended update support long-life add-on
Versions
- ≥ 0:4.13-3.el8_6.2: Not affected (rpm)
No fix published
red hat enterprise linux 8.8 telecommunications update service
Versions
- ≥ 0:3.6.16-7.el8_8.4: Not affected (rpm)
No fix published
red hat enterprise linux 8.8 telecommunications update service
Versions
- ≥ 0:4.13-4.el8_8.1: Not affected (rpm)
No fix published
red hat enterprise linux 8.8 update services for sap solutions
Versions
- ≥ 0:3.6.16-7.el8_8.4: Not affected (rpm)
No fix published
red hat enterprise linux 8.8 update services for sap solutions
Versions
- ≥ 0:4.13-4.el8_8.1: Not affected (rpm)
No fix published
red hat enterprise linux 9
Versions
- ≥ 0:3.8.10-4.el9_8: Not affected (rpm)
No fix published
red hat enterprise linux 9.2 update services for sap solutions
Versions
- ≥ 0:3.7.6-21.el9_2.7: Not affected (rpm)
No fix published
red hat enterprise linux 9.4 update services for sap solutions
Versions
- ≥ 0:3.8.3-4.el9_4.6: Not affected (rpm)
No fix published
red hat enterprise linux 9.6 extended update support
Versions
- ≥ 0:3.8.3-6.el9_6.4: Not affected (rpm)
No fix published
red hat openshift container platform 4.12
Versions
- ≥ 412.86.202608241157-0: Not affected (rpm)
No fix published
red hat openshift container platform 4.13
Versions
- ≥ 413.92.202609080414-0: Not affected (rpm)
No fix published
red hat openshift container platform 4.14
Versions
- ≥ 414.92.202608172040-0: Not affected (rpm)
No fix published
red hat openshift container platform 4.15
Versions
- ≥ 415.92.202608180329-0: Not affected (rpm)
No fix published

Original sources

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