Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2022-0582

31
FAUCET Score

CVE-2022-0582 is a critical denial-of-service vulnerability affecting Wireshark versions 3.6.0-3.6.1 and 3.4.0-3.4.11, stemming from an unaligned access flaw in the CSN.1 protocol dissector. This vulnerability can be triggered remotely via packet injection or by processing a specially crafted capture file, leading to a complete denial of service. With a CVSS score of 9.8, it represents a severe threat due to its network-based attack vector, low attack complexity, and high impact on availability, confidentiality, and integrity. Despite its critical severity, there is currently no evidence of active exploitation, public exploit code, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.4.0, < 3.4.12CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*
3.6.0CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:3.6.0:*:*:*:*:*:*:*
3.6.1CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:3.6.1:*:*:*:*:*:*:*
34CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
35CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.99%
Probability of exploitation in next 30 days
EPSS Percentile
78.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0199 is in the 67th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

microsoftpatch availablevia msrc
Product: 19467-16823Fixed in: 3.4.14-1
microsoftpatch availablevia msrc
Product: cbl2 wireshark 3.4.14-1 on CBL Mariner 2.0Fixed in: 3.4.14-1

Vendor Advisories (2)

redhatCVE-2022-0582Moderate

wireshark: CSN.1 dissector crash

Feb 10, 2022
microsoft2022-Feb/CVE-2022-0582Critical

Unaligned access in the CSN.1 protocol dissector in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allows denial of service via packet injection or crafted capture file

Feb 8, 2022

References

lists.debian.org / debian-lts-announce/2024/09/msg00049.html
gitlab.com / gitlab-org/cves/-/blob/master/2022/CVE-2022-0582.json
Third Party Advisory
gitlab.com / wireshark/wireshark/-/issues/17882
ExploitIssue TrackingThird Party Advisory
lists.debian.org / debian-lts-announce/2022/03/msg00041.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/HRJ24JRKLA6XMDKLGVTOPM5KBBU4UHLN
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/V3DZD2JU56ZI4XV2B3HGVGA5PXQDNA5T
security.gentoo.org / glsa/202210-04
Third Party Advisory
wireshark.org / security/wnpa-sec-2022-04.html
Issue TrackingVendor Advisory