GHSA-fhwj-6xh8-h4rw

GHSA-fhwj-6xh8-h4rw PUBLISHED CVSS 8.699999809265137 HIGH

Record from GitHub Advisory Database · Published May 14, 2022

Mozilla Network Security Services (NSS) before 3.19, as used in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, Thunderbird before 38.1, and other products, does not properly determine state transitions for the TLS state machine, which allows man-in-the-middle attackers to defeat cryptographic protection mechanisms by blocking messages, as demonstrated by removing a forward-secrecy property by blocking a ServerKeyExchange message, aka a "SMACK SKIP-TLS" issue.

Risk scores

CVSS 4.0

8.699999809265137

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Timeline

May 14, 2022 CVE Published
Apr 9, 2026 Distribution Patch (6 in total, the first dated here)
Apr 9, 2026 Security Advisory

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln GHSA-fhwj-6xh8-h4rw
vulnetix vdb fixes GHSA-fhwj-6xh8-h4rw

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/GHSA-fhwj-6xh8-h4rw/fixes/registry"

The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart

References

…and 10 more

Look up in the Resolve Platform →