CVE-2022-34470
A public proof of concept exists; no exploitation attested.
- Published2022-12-22
- Fixed in102.0
- WeaknessCWE-416
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
Session history navigations may have led to a use-after-free and potentially exploitable crash. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11.
Timeline
dates in UTC- 2022-12-2220:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-34470?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-34470?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 102.0 | < 102.0 | 102.0 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 91.11 | < 91.11 | 91.11 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 91.11 | < 91.11 | 91.11 | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Packages
- thunderbirdAlmaLinux:9all versions · fixed in 91.11.0-2.el9_0.alma
Fix
- Update Mozilla firefox to 102.0
Advisories and patches
- bugzilla.mozilla.orgVendor Advisory
- www.mozilla.orgVendor Advisory
- www.mozilla.orgVendor Advisory
- www.mozilla.orgVendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- 2022-12-22
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2022-34470?
Is CVE-2022-34470 actively exploited?
What is the CVSS score for CVE-2022-34470?
Running thunderbird? Hear about its next vulnerability
Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
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Go further
- Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
- Running this software? Vulnerability monitoring alerts you to new vulnerabilities in your products.
Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.