High severity7.5NVD Advisory· Published Apr 30, 2026· Updated Jul 20, 2026
CVE-2026-33845
CVE-2026-33845
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
18- cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*+ 4 more
- cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
- osv-coords9 versionspkg:rpm/almalinux/gnutlspkg:rpm/almalinux/gnutls-c%2B%2Bpkg:rpm/almalinux/gnutls-danepkg:rpm/almalinux/gnutls-develpkg:rpm/almalinux/gnutls-fipspkg:rpm/almalinux/gnutls-utilspkg:rpm/opensuse/gnutls&distro=openSUSE%20Tumbleweedpkg:rpm/suse/gnutls&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/gnutls&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5
< 3.6.16-8.el8_10.6+ 8 more
- (no CPE)range: < 3.6.16-8.el8_10.6
- (no CPE)range: < 3.6.16-8.el8_10.6
- (no CPE)range: < 3.6.16-8.el8_10.6
- (no CPE)range: < 3.6.16-8.el8_10.6
- (no CPE)range: < 3.8.10-4.el10_2
- (no CPE)range: < 3.6.16-8.el8_10.6
- (no CPE)range: < 3.8.13-1.1
- (no CPE)range: < 3.4.17-8.23.1
- (no CPE)range: < 3.4.17-8.23.1
Patches
Vulnerability mechanics
References
20- access.redhat.com/errata/RHSA-2026:13274nvdVendor Advisory
- access.redhat.com/security/cve/CVE-2026-33845nvdVendor Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingVendor Advisory
- access.redhat.com/errata/RHSA-2026:20611nvd
- access.redhat.com/errata/RHSA-2026:20612nvd
- access.redhat.com/errata/RHSA-2026:20613nvd
- access.redhat.com/errata/RHSA-2026:26319nvd
- access.redhat.com/errata/RHSA-2026:26409nvd
- access.redhat.com/errata/RHSA-2026:29197nvd
- access.redhat.com/errata/RHSA-2026:30004nvd
- access.redhat.com/errata/RHSA-2026:30849nvd
- access.redhat.com/errata/RHSA-2026:30850nvd
- access.redhat.com/errata/RHSA-2026:32962nvd
- access.redhat.com/errata/RHSA-2026:33125nvd
- access.redhat.com/errata/RHSA-2026:34372nvd
- access.redhat.com/errata/RHSA-2026:36004nvd
- access.redhat.com/errata/RHSA-2026:36005nvd
- access.redhat.com/errata/RHSA-2026:36006nvd
- access.redhat.com/errata/RHSA-2026:41921nvd
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33845.jsonnvd
News mentions
1- ⚡ Weekly Recap: Exchange 0-Day, npm Worm, Fake AI Repo, Cisco Exploit and MoreThe Hacker News · May 18, 2026