Low severity3.1NVD Advisory· Published Dec 11, 2020· Updated Jun 17, 2026

CVE-2020-26419

Description

Memory leak in the dissection engine in Wireshark 3.4.0 allows denial of service via packet injection or crafted capture file.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

The Wireshark Foundation/Wiresharkv5
Range: 3.4.0
osv-coords51 versions
pkg:rpm/suse/sbc&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSS pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3 pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP2 pkg:rpm/suse/libqt5-qtmultimedia&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOS pkg:rpm/suse/sbc&distro=SUSE%20Manager%20Proxy%204.0 pkg:rpm/suse/wireshark&distro=SUSE%20Manager%20Proxy%204.0 pkg:rpm/suse/wireshark&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0 pkg:rpm/suse/sbc&distro=SUSE%20Enterprise%20Storage%206 pkg:rpm/suse/wireshark&distro=SUSE%20Enterprise%20Storage%206 pkg:rpm/suse/sbc&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2 pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2 pkg:rpm/suse/sbc&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3 pkg:rpm/suse/sbc&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP2 pkg:rpm/suse/sbc&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP3 pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP3 pkg:rpm/suse/libvirt&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOS pkg:rpm/suse/sbc&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOS pkg:rpm/suse/libvirt&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSS pkg:rpm/suse/sbc&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSS pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSS pkg:rpm/suse/sbc&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCL pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCL pkg:rpm/suse/libqt5-qtmultimedia&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSS pkg:rpm/suse/sbc&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSS pkg:rpm/suse/sbc&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015 pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015 pkg:rpm/suse/sbc&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1 pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1 pkg:rpm/suse/libqt5-qtmultimedia&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0 pkg:rpm/suse/sbc&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0 pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSS pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSS pkg:rpm/suse/sbc&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSS pkg:rpm/suse/libvirt&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015 pkg:rpm/suse/libqt5-qtmultimedia&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1 pkg:rpm/suse/wireshark&distro=SUSE%20Manager%20Server%204.0 pkg:rpm/suse/libqt5-qtmultimedia&distro=SUSE%20Enterprise%20Storage%206 pkg:rpm/suse/sbc&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOS pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSS pkg:rpm/suse/libqt5-qtmultimedia&distro=SUSE%20Manager%20Proxy%204.0 pkg:rpm/suse/libqt5-qtmultimedia&distro=SUSE%20Manager%20Server%204.0 pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOS pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOS pkg:rpm/suse/libvirt&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSS pkg:rpm/suse/libqt5-qtmultimedia&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCL pkg:rpm/opensuse/wireshark&distro=openSUSE%20Leap%2015.2 pkg:rpm/opensuse/wireshark&distro=openSUSE%20Leap%2015.3 pkg:rpm/suse/libqt5-qtmultimedia&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSS pkg:rpm/suse/sbc&distro=SUSE%20Manager%20Server%204.0 pkg:rpm/opensuse/sbc&distro=openSUSE%20Leap%2015.3 pkg:rpm/opensuse/wireshark&distro=openSUSE%20Tumbleweed
< 1.3-3.2.1+ 50 more
- (no CPE)range: < 1.3-3.2.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 5.9.7-7.2.1
- (no CPE)range: < 1.3-3.2.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 1.3-3.2.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 1.3-3.2.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 1.3-3.2.1
- (no CPE)range: < 1.3-3.2.1
- (no CPE)range: < 1.3-3.2.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 4.0.0-9.37.21
- (no CPE)range: < 1.3-3.2.1
- (no CPE)range: < 4.0.0-9.37.21
- (no CPE)range: < 1.3-3.2.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 1.3-3.2.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 5.9.7-7.2.1
- (no CPE)range: < 1.3-3.2.1
- (no CPE)range: < 1.3-3.2.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 1.3-3.2.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 5.9.7-7.2.1
- (no CPE)range: < 1.3-3.2.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 1.3-3.2.1
- (no CPE)range: < 4.0.0-9.37.21
- (no CPE)range: < 5.9.7-7.2.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 5.9.7-7.2.1
- (no CPE)range: < 1.3-3.2.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 5.9.7-7.2.1
- (no CPE)range: < 5.9.7-7.2.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 4.0.0-9.37.21
- (no CPE)range: < 5.9.7-7.2.1
- (no CPE)range: < 3.4.5-lp152.2.12.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 5.9.7-7.2.1
- (no CPE)range: < 1.3-3.2.1
- (no CPE)range: < 1.3-3.2.1
- (no CPE)range: < 3.4.8-1.2
Wireshark/Wiresharkllm-fuzzy2 versions
= 3.4.0+ 1 more
- (no CPE)range: = 3.4.0
- cpe:2.3:a:wireshark:wireshark:3.4.0:*:*:*:*:*:*:*
Fedoraproject/Fedora2 versions
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
Oracle Corporation/Zfs Storage Appliance Kit
cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

www.oracle.com/security-alerts/cpuApr2021.htmlnvdPatchThird Party Advisory
gitlab.com/wireshark/wireshark/-/issues/17032nvdExploitIssue TrackingThird Party Advisory
gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26419.jsonnvdThird Party Advisory
security.gentoo.org/glsa/202101-12nvdThird Party Advisory
www.wireshark.org/security/wnpa-sec-2020-19.htmlnvdVendor Advisory
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M75HYXU36SP6GHIDPHNZGJKEO6TX4C4Y/nvd
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YHWDZPWQJMLK64VFDWJC5SEGPNH6Y72Z/nvd

News mentions

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cvss	0.202
epss	0.002
exploit	0.000
kev	0.000
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ransomware	0.000