10

CVE-2021-39615: dlink dsr-500n_firmware Use of Hard-coded Credentials

CVSS: 10.0v2.0HighModified
Published 23-08-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-39615 is a high (CVSS 10.0) Use of Hard-coded Credentials vulnerability in dlink dsr-500n_firmware. EPSS estimates a 2.20% chance of exploitation in the next 30 days, higher than 82.2% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
90/100
0100
Critical · default modelHow is this calculated?
CVSS score
10.0/10
010
High · v2.0 (NVD)
EPSS score
2.20%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 23-08-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

D-Link DSR-500N version 1.02 contains hard-coded credentials for undocumented user accounts in the '/etc/passwd' file.If an attacker succeeds in recovering the cleartext password of the identified hash value, he will be able to log in via SSH or Telnet and thus gain access to the underlying embedded Linux operating system on the device. Fixed in version 2.12/2. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

2.20%

Chance of exploitation in the next 30 days

Percentile

82%

Versus all other CVEs

30-day change

0.00 pp

From 2.20% on 20-09-2026

20-09-202620-10-2026
EPSS score
2.20%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (nussko.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Dlink1 product

1 vendor · 1 product

References

3 links