CVE-2021-40858
MEDIUMCVSS 4.9/10EPSS 2.39%
Last modified
CVE-2021-40858 is a medium-severity vulnerability rated 4.9/10 on the CVSS scale. Auerswald COMpact 5500R devices before 8.2B allow Arbitrary File Disclosure. A sub-admin can read the cleartext Admin password via the fileName=../../etc/passwd substring.. EPSS estimates a 2.39% chance of exploitation in the next 30 days.
Description
Auerswald COMpact 5500R devices before 8.2B allow Arbitrary File Disclosure. A sub-admin can read the cleartext Admin password via the fileName=../../etc/passwd substring.
Metrics
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Auerswald | Compact 5500r Ip Firmware | <= 8.0b |
| Auerswald | Compact 5200r Ip Firmware | <= 8.0b |
| Auerswald | Compact 5000r Ip Firmware | <= 8.0b |
| Auerswald | Compact 4000 Ip Firmware | <= 8.0b |
| Auerswald | Commander 6000r Ip Firmware | <= 8.0b |
| Auerswald | Commander 6000rx Ip Firmware | <= 8.0b |
| Auerswald | Commander Business\(19\"\) Ip Firmware | <= 8.0b |
| Auerswald | Commander Basic.2\(19\"\) Ip Firmware | <= 8.0b |
| Auerswald | Compact 5010 Voip Ip Firmware | <= 8.0b |
| Auerswald | Compact 5020 Voip Ip Firmware | <= 8.0b |
References
- http://packetstormsecurity.com/files/165166/Auerswald-COMpact-8.0B-Arbitrary-File-Disclosure.htmlExploit, Third Party Advisory, VDB Entry
- https://www.redteam-pentesting.de/advisories/rt-sa-2021-006Exploit, Third Party Advisory
- https://www.redteam-pentesting.de/en/advisories/-advisories-publicised-vulnerability-analysesExploit, Third Party Advisory
- http://packetstormsecurity.com/files/165166/Auerswald-COMpact-8.0B-Arbitrary-File-Disclosure.htmlExploit, Third Party Advisory, VDB Entry
- https://www.redteam-pentesting.de/advisories/rt-sa-2021-006Exploit, Third Party Advisory
- https://www.redteam-pentesting.de/en/advisories/-advisories-publicised-vulnerability-analysesExploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-40858?
Auerswald COMpact 5500R devices before 8.2B allow Arbitrary File Disclosure. A sub-admin can read the cleartext Admin password via the fileName=../../etc/passwd substring.
How severe is CVE-2021-40858?
CVE-2021-40858 has a CVSS score of 4.9/10 (MEDIUM severity). The EPSS model estimates a 2.39% probability of exploitation in the next 30 days.
How do I fix CVE-2021-40858?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-40858?
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Scan your code nowSource: NVD / NIST