HOMEVULNERABILITIESCVE-2021-46279
HIGH

CVE-2021-46279

CWE-384Published: October 24, 2022· Updated: Jun 17, 2026

8.8
CVSS v3.1

Official Description

Session fixation and insufficient session expiration vulnerabilities allow an attacker to perfom session hijacking attacks against users. This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.

NVD Source

Technical Analysis

CVE-2021-46279 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

lannerinc2 product(s)
iac-ast2500a firmwareiac-ast2500a
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/
ADVISORYhttps://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-46279/
ADVISORYhttps://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/
ADVISORYhttps://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-46279/

All References (4)

→
https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/Third Party Advisory
→
https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-46279/Third Party Advisory
→
https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/Third Party Advisory
→
https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-46279/Third Party Advisory

Quick Facts

CVE IDCVE-2021-46279
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-384
CISA KEVNo
Affected1 vendor(s)
PublishedOct 24, 2022

Related CVEs (CWE-384)

CVE-2024-11317
10.0
CVE-2021-20151
10.0
CVE-2020-11729
9.8
CVE-2015-1820
9.8
CVE-2016-10405
9.8
CVE-2015-1174
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-46279 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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