CVE-2020-15415On DrayTek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1, cgi-bin/mainfunction.cgi/cvmcfgupload allows remote command execution via shell metacharacters in a filename when the text/x-pytho…
Updated under an hour ago ()
Does this affect you?
It affects draytek vigor3900_firmware and 2 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Sep 30, 2024; federal agencies had to remediate by Oct 21, 2024. Treat that date as your deadline.
Do this next
Free account, 1 product
On DrayTek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1, cgi-bin/mainfunction.cgi/cvmcfgupload allows remote command execution via shell metacharacters in a filename when the text/x-python-script content type is used, a different issue than CVE-2020-14472.
- CVSS
- 9.8 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-78
- Known exploited
- Added to CISA KEV Sep 30, 2024; federal remediation due Oct 21, 2024Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- EPSS (exploitation in the next 30 days)
- 84.48% (percentile 100)
- Assigned by
- mitre
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
draytek vigor3900_firmware draytek:vigor3900_firmware | before 1.5.1 | CISA ADP |
draytek vigor2960_firmware draytek:vigor2960_firmware | before 1.5.1 | CISA ADP |
draytek vigor300b_firmware draytek:vigor300b_firmware | before 1.5.1 | CISA ADP |
draytek vigor3900_firmware draytek:vigor3900_firmware | before 1.5.1 | NVD |
draytek vigor2960_firmware draytek:vigor2960_firmware | before 1.5.1 | NVD |
draytek vigor300b_firmware draytek:vigor300b_firmware | before 1.5.1 | NVD |
References
- https://www.draytek.com/about/security-advisoryx-refsource-misc, vendor-advisory
- https://github.com/CLP-team/Vigor-Commond-Injectionx-refsource-misc, exploit
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-15415us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.