PatchTheCVECVE-2019-9191: The ETSI Enterprise Transport Security (ETS, formerly known as eTLS) protocol does not provide per-session for
CVE-2019-9191 is a medium-severity flaw (CVSS 5.9) affecting enterprise transport security. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The ETSI Enterprise Transport Security (ETS, formerly known as eTLS) protocol does not provide per-session forward secrecy.
Why this priority
- Remotely exploitable, no login, no user action
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 5.9 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | High |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.5% (top 25%) |
| CISA exploited list | No |
| Weakness | CWE-310 |
| Published | 2019-02-26 |
| 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-2019-9191?
enterprise transport security: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2019-9191 being exploited?
CVE-2019-9191 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-2019-9191 affect?
CVE-2019-9191 affects enterprise transport security. Severity is medium (CVSS 5.9). The ETSI Enterprise Transport Security (ETS, formerly known as eTLS) protocol does not provide per-session forward secrecy.
How urgent is CVE-2019-9191?
Priority 44/100. Remotely exploitable, no login, no user action