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Fencer Intel
medium 4.9

CVE-2021-40858 json

Auerswald COMpact 5500R devices before 8.2B allow Arbitrary File Disclosure.

published 4y ago modified 4mo ago also EUVD-2021-28014

cvss
4.9
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.5%
EPSS 2.5% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

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.

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Exploit prediction

2.47% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • redteam-pentesting.de https://www.redteam-pentesting.de/en/advisories/-advisories-publicised-vulnerability-analyses referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/165166/Auerswald-COMpact-8.0B-Arbitrary-File-Disclosure.html referenced PoC, tagged "exploit" by a source, unverified
  • redteam-pentesting.de https://www.redteam-pentesting.de/advisories/rt-sa-2021-006 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 6.8 AV:N/AC:L/Au:S/C:C/I:N/A:N

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.