Improper refcounting of soft token session objects could cause a use-after-free and crash (likely limited to a denial of service). This vulnerability affects Firefox < 71.
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This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 39% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Improper refcounting of soft token session objects could cause a use-after-free and crash (likely limited to a denial of service). This vulnerability affects Firefox < 71.
January 8, 2020
November 21, 2024
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | firefox-mozsymbols (71.0+build5-0ubuntu0.16.04.1) @ xenial | 2026-05-27 | ubuntu |
| ubuntu | firefox-mozsymbols (71.0+build5-0ubuntu0.19.10.1) @ eoan | 2026-05-27 | ubuntu |
| redhat | nss-softokn-0:3.44.0-9.el7_7 | 2021-03-30 | redhat |
| redhat | openshiftdo/odo-init-image-rhel7:1.1.3-2 | 2021-03-22 | redhat |
| redhat | nss-softokn-0:3.36.0-7.el7_6 | 2021-03-16 | redhat |
| redhat | nss-softokn-0:3.28.3-10.el7_4 | 2021-03-09 | redhat |
| redhat | nss-util-0:3.53.1-1.el7_9 | 2020-09-29 | redhat |
| redhat | nss-0:3.53.1-11.el8_2 | 2020-08-03 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
RHSA-2020:3280 — Moderate
RHSA-2020:4076 — Moderate
RHSA-2021:0758 — Moderate
RHSA-2021:0876 — Moderate
RHSA-2021:0949 — Moderate
RHSA-2021:1026 — Moderate
Firefox vulnerabilities
Firefox vulnerabilities
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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redhat
CWE-416