CVE-2025-69809: p2r3 Bareiron · Write-what-where Condition
Source CVE Database V5
Not known to be exploited · CVSS 9.8 Critical.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 45% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 16 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
AI-suggested
- Immediate network segmentation to isolate Bareiron-based devices from untrusted networks and limit exposure to crafted packets.
- Deploy intrusion detection and prevention systems (IDS/IPS) with signatures or anomaly detection tuned to identify suspicious packet patterns targeting Bareiron devices.
- Implement strict firewall rules to restrict inbound traffic to only trusted sources and necessary protocols for Bareiron devices.
- Monitor network traffic for unusual activity indicative of exploitation attempts, including unexpected memory write operations or device behavior anomalies.
- Engage with the device vendor or firmware maintainers to obtain patches or firmware updates as soon as they become available and prioritize their deployment.
- Conduct thorough asset inventories to identify all devices running Bareiron firmware and assess their exposure.
- Where possible, apply application-layer filtering or protocol validation to prevent malformed packets from reaching vulnerable devices.
- Consider deploying endpoint detection and response (EDR) solutions on devices or gateways to detect signs of compromise.
- Develop incident response plans specific to embedded device compromise scenarios to enable rapid containment and recovery.
- Educate network and security teams about this vulnerability and the importance of proactive monitoring and mitigation.
Description
A write-what-where condition in p2r3 Bareiron commit 8e4d40 allows unauthenticated attackers to write arbitrary values to memory, enabling arbitrary code execution via a crafted packet.