CVE-2020-26422

low-risk
Published 2020-12-21

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

Do I need to act?

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0.31% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.7/10 Low
NETWORK / HIGH complexity

Affected Products (3)

Affected Vendors

Oracle Wireshark

References (10)

Third Party Advisory https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26422.json
Issue Tracking https://gitlab.com/wireshark/wireshark/-/issues/17073
Third Party Advisory https://security.gentoo.org/glsa/202101-12
Patch https://www.oracle.com/security-alerts/cpuApr2021.html
Vendor Advisory https://www.wireshark.org/security/wnpa-sec-2020-20.html
Third Party Advisory https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26422.json
Issue Tracking https://gitlab.com/wireshark/wireshark/-/issues/17073
Third Party Advisory https://security.gentoo.org/glsa/202101-12
Patch https://www.oracle.com/security-alerts/cpuApr2021.html
Vendor Advisory https://www.wireshark.org/security/wnpa-sec-2020-20.html
23
/ 100
low-risk
Severity 13/34 · Low
Exploitability 1/34 · Minimal
Exposure 9/34 · Low