10

CVE-2021-43517: foscam fi9805e_firmware

CVSS: 10.0v2.0HighModified
Published 08-04-2022Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-43517 is a high (CVSS 10.0) vulnerability in foscam fi9805e_firmware. EPSS estimates a 1.72% chance of exploitation in the next 30 days, higher than 77.2% 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
1.72%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 08-04-2022
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

FOSCAM Camera FI9805E with firmware V4.02.R12.00018510.10012.143900.00000 contains a backdoor that opens Telnet port when special command is sent on port 9530.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.72%

Chance of exploitation in the next 30 days

Percentile

77%

Versus all other CVEs

30-day change

0.00 pp

From 1.72% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.72%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (habr.com)

    Maturity: unknown

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Foscam1 product

1 vendor · 1 product

References

1 links