CVE-2021-22191
HIGH
8.8
CVSS Score
Published: March 15, 2021 at 05:48 PM UTC
Updated: June 17, 2026 at 03:36 AM UTC
3 products affected across 3 vendorsDebian LinuxWiresharkZfs Storage Appliance
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Severity
HIGH8.8
Exploit prediction
EPSS 4%
Description
Improper URL handling in Wireshark 3.4.0 to 3.4.3 and 3.2.0 to 3.2.11 could allow remote code execution via via packet injection or crafted capture file.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%v < 3.2.12v < 3.4.43.2.0 ≤ v ≤ 3.2.113.4.0 ≤ v ≤ 3.4.3
Affected range stops below 3.2.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.4.4, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (6)
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22191.jsonx_refsource_MISCIssue TrackingThird Party Advisory
Source: [email protected]
https://gitlab.com/wireshark/wireshark/-/issues/17232Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2022/03/msg00041.htmlVendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202107-21x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://www.oracle.com/security-alerts/cpuApr2021.htmlx_refsource_MISCVendor Advisory
Source: [email protected]
https://www.wireshark.org/security/wnpa-sec-2021-03.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-74
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