PatchTheCVECVE-2022-39996: Cross Site Scripting vulnerability in Teldats Router RS123, RS123w allows attacker to execute arbitrary code v
CVE-2022-39996 is a medium-severity flaw (CVSS 4.8) affecting rs123 firmware, rs123w firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Cross Site Scripting vulnerability in Teldats Router RS123, RS123w allows attacker to execute arbitrary code via the cmdcookie parameter to the upgrade/query.php page.
Why this priority
- Public exploit reference
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 4.8 (Medium) |
| Attack vector | Adjacent network |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | Required |
| EPSS exploit chance | 0.3% (top 73%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2024-08-27 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2022-39996?
rs123 firmware: mitigate or apply the listed mitigation; rs123w firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2022-39996 being exploited?
CVE-2022-39996 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2022-39996 affect?
CVE-2022-39996 affects rs123 firmware, rs123w firmware. Severity is medium (CVSS 4.8). Cross Site Scripting vulnerability in Teldats Router RS123, RS123w allows attacker to execute arbitrary code via the cmdcookie parameter to the upgrade/query.php page.
How urgent is CVE-2022-39996?
Priority 29/100. Public exploit reference