VDB

CVE-2025-9817

CVE-2025-9817 PUBLISHED CVSS 7.8 HIGH

NULL Pointer Dereference in Wireshark

Reported by gitlab · Published September 3, 2025

SSH dissector crash in Wireshark 4.4.0 to 4.4.8 allows denial of service

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

PackageEcosystemFixed in
wireshark-develAmazon Linux1:4.4.2-1.amzn2023.0.2
wireshark-cliAmazon Linux1:4.4.2-1.amzn2023.0.2
wiresharkwireshark4.4.8
WiresharkWireshark Foundation4.4.9

Risk scores

CVSS 3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

VendorProductVersions
Wireshark FoundationWireshark4.4.0
amazon:2023wireshark-devel0
Wireshark FoundationWireshark4.4.0
amazon:2023wireshark-cli0

Timeline

  • Sep 3, 2025 EPSS Score (30 in total, the first dated here)
  • Sep 3, 2025 CVE Published
  • Sep 3, 2025 PoC Published (6 in total, the first dated here)
  • Mar 26, 2026 Coalition ESS Score (2 in total, the first dated here)
  • Apr 29, 2026 Security Advisory (5 in total, the first dated here)
  • Jul 16, 2026 CVE Updated
  • Oct 7, 2026 Distribution Patch (2 in total, the first dated here)

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln CVE-2025-9817
vulnetix vdb fixes CVE-2025-9817

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/CVE-2025-9817/fixes/registry"

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References

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