Skip to main content
VulnerabilityPublished

CVE-2026-96418: Wireshark · Infinite Loop

Affects WiresharkSource CVE Database V5

0
Compare

Not known to be exploited · CVSS 5.5 Medium : upgrade to 4.6.9 or 4.4.19 when convenient.

Data as of 11 Nov 2026, 23:25 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 3% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 4.6.9, 4.4.19
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Upgrade Wireshark and wireshark/wireshark to 4.6.9 or 4.4.19.

Affected software

ProductAffectedFixed in
Wireshark FoundationWiresharkAffected
  • >=4.6.0 <4.6.9
Fixed in
  • 4.6.9
Wireshark FoundationWiresharkAffected
  • >=4.4.0 <4.4.19
Fixed in
  • 4.4.19
GitHubwireshark/wiresharkpkg:github/wireshark/wiresharkOther threatsAffected
  • >=4.4.0 <4.4.19
  • >=4.6.0 <4.6.9
Fixed in
  • 4.4.19
  • 4.6.9

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

If you cannot patch yet, avoid processing untrusted TIFF data with affected Wireshark versions.

Description

CVE-2026-96418 is a medium severity vulnerability in Wireshark affecting versions 4.4.0 through 4.4.18 and 4.6.0 through 4.6.8. It involves an infinite loop in the TIFF protocol dissector that can cause a denial of service. The flaw arises from a loop with an unreachable exit condition, leading to resource exhaustion when processing crafted TIFF data. No confidentiality or integrity impact is reported. No known exploits are currently in the wild.

References

Community reviews

Loading reviews…