CVE-2023-39367: Peplink Smart Reader · OS Command Injection
Affects Peplink Smart ReaderSource CVE Database V5
Not known to be exploited · 37% EPSS · CVSS 9.1 Critical.
Data as of 26 Oct 2026, 10:12 UTC
- EPSS
- 37.6% chance of exploitation in 30 days – higher than 98% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 17 Apr 2024
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
- Immediately restrict access to the Peplink Smart Reader web interface to trusted administrators only, ideally via VPN or secure management networks.
- Enforce strong authentication mechanisms and rotate credentials regularly to reduce the risk of credential compromise.
- Monitor logs for unusual authenticated HTTP requests targeting the mac2name functionality or other suspicious activities.
- 5. Employ network segmentation to limit the device’s exposure to untrusted networks and reduce the blast radius of potential exploitation. 6. Conduct regular vulnerability scans and penetration tests focusing on management interfaces to detect similar injection flaws. 7. Educate administrators on the risks of OS command injection and the importance of secure device management practices.
Description
An OS command injection vulnerability exists in the web interface mac2name functionality of Peplink Smart Reader v1.2.0 (in QEMU). A specially crafted HTTP request can lead to arbitrary command execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.
References
- talosintelligence.com/vulnerability_reports/TALOS-2023-1867 (opens in a new tab)
- forum.peplink.com/t/peplink-security-advisory-smart-reader-firmware-1-2-0-cve-2023-43491-cve-2023-45209-cve-2023-39367-cve-2023-45744-cve-2023-40146/47256 (opens in a new tab)
- talosintelligence.com/vulnerability_reports/TALOS-2023-1867 (opens in a new tab)