CVE-2019-11856 json
ALEOS ACEView Message Replay
published 2020-08-21 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-3516
- cvss
- 3.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 62%
- public exploits
- 0
- none known
Summary
A nonce reuse vulnerability exists in the ACEView service of ALEOS before 4.13.0, 4.9.5, and 4.4.9 allowing message replay. Captured traffic to the ACEView service can be replayed to other gateways sharing the same credentials.
Exploit prediction
0.98% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.3 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L |
| NVD | 3.1 | 3.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L |
| NVD | 2.0 | 5.5 | AV:N/AC:L/Au:S/C:N/I:P/A:P |
Classification
- Weakness
-
- CWE-294 Authentication Bypass by Capture-replay
References
Sources
- CVE List CVE-2019-11856
- NVD CVE-2019-11856
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.