Low severity3.7NVD Advisory· Published Dec 21, 2020· Updated Jun 17, 2026

CVE-2020-26422

Description

Buffer overflow in QUIC dissector in Wireshark 3.4.0 to 3.4.1 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

Oracle Corporation/Zfs Storage Appliance Kit
cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*
Wireshark/Wireshark3 versions
cpe:2.3:a:wireshark:wireshark:3.4.0:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:wireshark:wireshark:3.4.0:*:*:*:*:*:*:*
- cpe:2.3:a:wireshark:wireshark:3.4.1:*:*:*:*:*:*:*
- (no CPE)range: 3.4.0 to 3.4.1
osv-coords51 versions
pkg:rpm/opensuse/sbc&distro=openSUSE%20Leap%2015.3 pkg:rpm/opensuse/wireshark&distro=openSUSE%20Leap%2015.2 pkg:rpm/opensuse/wireshark&distro=openSUSE%20Leap%2015.3 pkg:rpm/opensuse/wireshark&distro=openSUSE%20Tumbleweed pkg:rpm/suse/libqt5-qtmultimedia&distro=SUSE%20Enterprise%20Storage%206 pkg:rpm/suse/libqt5-qtmultimedia&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOS pkg:rpm/suse/libqt5-qtmultimedia&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSS pkg:rpm/suse/libqt5-qtmultimedia&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCL pkg:rpm/suse/libqt5-qtmultimedia&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSS pkg:rpm/suse/libqt5-qtmultimedia&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1 pkg:rpm/suse/libqt5-qtmultimedia&distro=SUSE%20Manager%20Proxy%204.0 pkg:rpm/suse/libqt5-qtmultimedia&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0 pkg:rpm/suse/libqt5-qtmultimedia&distro=SUSE%20Manager%20Server%204.0 pkg:rpm/suse/libvirt&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/libvirt&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSS pkg:rpm/suse/libvirt&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015 pkg:rpm/suse/sbc&distro=SUSE%20Enterprise%20Storage%206 pkg:rpm/suse/sbc&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOS pkg:rpm/suse/sbc&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSS pkg:rpm/suse/sbc&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOS pkg:rpm/suse/sbc&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSS pkg:rpm/suse/sbc&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/sbc&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCL pkg:rpm/suse/sbc&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSS pkg:rpm/suse/sbc&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSS pkg:rpm/suse/sbc&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/sbc&distro=SUSE%20Manager%20Proxy%204.0 pkg:rpm/suse/sbc&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0 pkg:rpm/suse/sbc&distro=SUSE%20Manager%20Server%204.0 pkg:rpm/suse/wireshark&distro=SUSE%20Enterprise%20Storage%206 pkg:rpm/suse/wireshark&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/wireshark&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOS pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSS pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2 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/wireshark&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP3 pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCL pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSS pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSS pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015 pkg:rpm/suse/wireshark&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1 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/wireshark&distro=SUSE%20Manager%20Server%204.0
< 1.3-3.2.1+ 50 more
- (no CPE)range: < 1.3-3.2.1
- (no CPE)range: < 3.4.5-lp152.2.12.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 3.4.8-1.2
- (no CPE)range: < 5.9.7-7.2.1
- (no CPE)range: < 5.9.7-7.2.1
- (no CPE)range: < 5.9.7-7.2.1
- (no CPE)range: < 5.9.7-7.2.1
- (no CPE)range: < 5.9.7-7.2.1
- (no CPE)range: < 5.9.7-7.2.1
- (no CPE)range: < 5.9.7-7.2.1
- (no CPE)range: < 5.9.7-7.2.1
- (no CPE)range: < 5.9.7-7.2.1
- (no CPE)range: < 4.0.0-9.37.21
- (no CPE)range: < 4.0.0-9.37.21
- (no CPE)range: < 4.0.0-9.37.21
- (no CPE)range: < 4.0.0-9.37.21
- (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: < 1.3-3.2.1
- (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: < 1.3-3.2.1
- (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: < 1.3-3.2.1
- (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: < 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: < 3.4.5-3.53.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 3.4.5-3.53.1
- (no CPE)range: < 3.4.5-3.53.1
The Wireshark Foundation/Wiresharkv5
Range: >=3.4.0, <3.4.2

Patches

Vulnerability mechanics

References

www.oracle.com/security-alerts/cpuApr2021.htmlnvdPatchThird Party Advisory
gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26422.jsonnvdThird Party Advisory
gitlab.com/wireshark/wireshark/-/issues/17073nvdIssue TrackingThird Party Advisory
security.gentoo.org/glsa/202101-12nvdThird Party Advisory
www.wireshark.org/security/wnpa-sec-2020-20.htmlnvdVendor Advisory

News mentions

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cvss	0.240
epss	0.004
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000