PatchTheCVECVE-2021-44769: An improper input validation vulnerability in the TLS certificate generation function allows an attacker to ca
CVE-2021-44769 is a medium-severity flaw (CVSS 4.9) affecting iac-ast2500a firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
An improper input validation vulnerability in the TLS certificate generation function allows an attacker to cause a Denial-of-Service (DoS) condition which can only be reverted via a factory reset. This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.
Why this priority
- No elevated risk signals yet
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 4.9 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | High |
| User interaction | None |
| EPSS exploit chance | 0.5% (top 57%) |
| CISA exploited list | No |
| Weakness | CWE-20 |
| Published | 2022-10-24 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2021-44769?
iac-ast2500a firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2021-44769 being exploited?
CVE-2021-44769 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2021-44769 affect?
CVE-2021-44769 affects iac-ast2500a firmware. Severity is medium (CVSS 4.9). An improper input validation vulnerability in the TLS certificate generation function allows an attacker to cause a Denial-of-Service (DoS) condition which can only be reverted via a factory reset. This issue affects: Lanner Inc IAC-AST2500
How urgent is CVE-2021-44769?
Priority 28/100. No elevated risk signals yet.
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