CVE-2025-0815
📋 TL;DR
An improper input validation vulnerability in Schneider Electric products allows attackers to cause denial-of-service by sending malicious ICMPv6 packets to affected devices. This affects network-connected Schneider Electric devices with vulnerable firmware. The vulnerability requires network access to the device's ICMPv6 interface.
💻 Affected Systems
- Schneider Electric products listed in SEVD-2025-042-04
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete device unavailability requiring physical reset or power cycle, potentially disrupting critical industrial operations.
Likely Case
Temporary service disruption until device automatically recovers or manual intervention restores functionality.
If Mitigated
Minimal impact with proper network segmentation and ICMPv6 filtering in place.
🎯 Exploit Status
Exploitation requires only network access and ability to send crafted ICMPv6 packets. No authentication needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Refer to vendor advisory for specific fixed versions
Vendor Advisory: https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2025-042-04&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2025-042-04.pdf
Restart Required: Yes
Instructions:
1. Download firmware update from Schneider Electric portal. 2. Backup current configuration. 3. Apply firmware update following vendor instructions. 4. Restart device. 5. Verify update applied successfully.
🔧 Temporary Workarounds
ICMPv6 Filtering
linuxBlock ICMPv6 packets at network perimeter or device firewall
iptables -A INPUT -p ipv6-icmp -j DROP
ip6tables -A INPUT -p icmpv6 -j DROP
IPv6 Disablement
linuxDisable IPv6 on affected devices if not required
sysctl -w net.ipv6.conf.all.disable_ipv6=1
sysctl -w net.ipv6.conf.default.disable_ipv6=1
🧯 If You Can't Patch
- Segment affected devices on isolated network VLANs
- Implement strict firewall rules to limit ICMPv6 traffic to trusted sources only
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against vulnerable versions in vendor advisoryCheck Version:
Device-specific - consult product documentation for version check commandVerify Fix Applied:
Verify firmware version matches patched version from vendor advisory📡 Detection & Monitoring
Log Indicators:
- Device crash/restart logs
- ICMPv6 packet flood alerts
- Network interface errors
Network Indicators:
- Unusual ICMPv6 traffic patterns to industrial devices
- ICMPv6 packets with malformed headers
SIEM Query:
source="firewall" AND (proto="icmpv6" OR proto="ipv6-icmp") AND dest_ip="industrial_device_subnet" AND bytes>1000