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cvelistTalosCVELIST:CVE-2021-21971
HistoryFeb 04, 2022 - 10:29 p.m.

CVE-2021-21971

2022-02-0422:29:02
CWE-787
talos
www.cve.org
sealevel systems seaconnect 370w
mqtt payload
out-of-bounds write
man-in-the-middle attack
cve-2021-21971

CVSS3

3.7

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS

0.001

Percentile

32.4%

An out-of-bounds write vulnerability exists in the URL_decode functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A specially-crafted MQTT payload can lead to an out-of-bounds write. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.

CNA Affected

[
  {
    "product": "Sealevel",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Sealevel Systems, Inc. SeaConnect 370W v1.3.34"
      }
    ]
  }
]

CVSS3

3.7

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS

0.001

Percentile

32.4%

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