CVE-2021-22640
No exploitation reported by the sources we read.
- Published2022-07-28
- Fixed in1.46
- WeaknessCWE-294 · CWE-307 · CWE-522
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
An attacker can decrypt the Ovarro TBox login password by communication capture and brute force attacks.
Timeline
dates in UTC- 2022-07-2815:15CVE 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-2021-22640?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-22640?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 |
|---|---|---|---|
| 1.46 | < 1.46 | 1.46 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 1.46 | < 1.46 | 1.46 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 1.46 | < 1.46 | 1.46 | NVD |
5 more products in the sources.
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.
Vendor advisories
Ovarro TBox (Update A)
TBox MS-CPU32-S2: All versions prior to TWinSoft 12.4 and Firmware 1.46 · TBox MS-CPU32: All versions prior to TWinSoft 12.4 and Firmware 1.46 · TBox TG2 (All models): All versions prior to TWinSoft 12.4 and Firmware 1.46 · +2 more
Fix
- Update Ovarro tbox lt2-530 firmware to 1.46
- Mitigation from the vendor CISA ICSA-21-054-04 · 5 productsOvarro recommends affected users update to 12.5 or later of TWinSoft to mitigate these vulnerabilities.
- Mitigation from the vendor CISA ICSA-21-054-04 · 5 productsThe latest version can be found on www.ovarro.com in the customer support section (service portal).
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
- 2022-07-28
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2021-22640?
Is CVE-2021-22640 actively exploited?
What is the CVSS score for CVE-2021-22640?
Running Ovarro TBox? 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.