CVE-2021-44467 json
spx_restservice KillDupUsr_func Broken Access Control
published 2022-10-24 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-31304
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 0
- none known
Summary
A broken access control vulnerability in the KillDupUsr_func function of spx_restservice allows an attacker to arbitrarily terminate active sessions of other users, causing a Denial-of-Service (DoS) condition, if an input parameter is correctly guessed. This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 18 mo ago
Exploit prediction
0.79% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
- Lanner Inc IAC-AST2500A
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
-
nozominetworks.com
/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/
third-party-advisory
-
nozominetworks.com
/labs/vulnerability-advisories/cve-2021-44467/
third-party-advisory
Sources
- CVE List CVE-2021-44467
- NVD CVE-2021-44467
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.