Nortek Linear eMerge E3-Series 0.32-07p devices are vulnerable to /card_scan.php?CardFormatNo= XSS with session fixation (via PHPSESSID) when they are chained together. This would allow an attacker to take over an admin account or a user account.
Conclusion & alert: CVE-2022-31798 is rated Moderate Risk (51.9/100): CVSS Medium severity, with high exploitation likelihood (EPSS 6.41%, 93th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 86.61% | 6.41% | -80.21% |
| 2 | 2026-03-13 | 78.15% | 86.61% | +8.46% |
| 3 | 2026-02-11 | — | 78.15% | — |
Full EPSS history (26 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.1 | 3.1 | MEDIUM |
|
2.8 | 2.7 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| nortekcontrol | emerge_e3_firmware | <= 0.32-07p | cpe:2.3:o:nortekcontrol:emerge_e3_firmware:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://packetstormsecurity.com/files/167992/Nortek-Linear-eMerge-E3-Series-Account-Takeover.html | Third Party Advisory VDB Entry |
| https://eg.linkedin.com/in/omar-1-hashem | Not Applicable |
| https://gist.github.com/omarhashem123/bccdcec70ab7e8f00519d56ea2e3fd79 | Third Party Advisory |