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01 Record

CVE-2020-26419

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

LowPUBLISHEDCNA: GitLab
CNA base score3.1 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L

02 Description

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

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
2.93% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 86.6% of scored records. A rank, not a probability.
NVD base score
5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2020-12-11 17:17Z5 YR AGO
Last updated
2024-08-04 15:56Z2 YR AGO
Reserved
2020-10-01
Assigning CNA
GitLab
Record state
PUBLISHED
Severity
Low (CVSS 3.1)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
Weaknesses
  • CWE-401Missing Release of Memory after Effective LifetimeVariant
Data version
5.1
Document digest
b0f49fa97c4ff72694df87bd1a2299aee1d945e2b9363efeb6b239368ff18a7c

05 Affected products

VendorProductVersionsPlatforms
The Wireshark FoundationWireshark3.4.0—

06 References

07 Fixed in

Arch Linux

  • wireshark-cli
    Fixed in 3.4.1-1

Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.

Debian 12

  • wireshark
    Fixed in 3.4.1-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • wireshark
    Fixed in 3.4.1-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • wireshark
    Fixed in 3.4.1-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.