PatchTheCVECVE-2022-3540: An issue has been discovered in hunter2 affecting all versions before 2.1.0
CVE-2022-3540 is a medium-severity flaw (CVSS 6.5) affecting hunter2. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
An issue has been discovered in hunter2 affecting all versions before 2.1.0. Improper handling of auto-completion input allows an authenticated attacker to extract other users email addresses
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 6.5 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.5% (top 56%) |
| CISA exploited list | No |
| Weakness | CWE-312 |
| Published | 2022-10-17 |
| 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-2022-3540?
hunter2: upgrade to 2.1.0. Exact commands for each OS are on this page.
Is CVE-2022-3540 being exploited?
CVE-2022-3540 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-2022-3540 affect?
CVE-2022-3540 affects hunter2. Severity is medium (CVSS 6.5). An issue has been discovered in hunter2 affecting all versions before 2.1.0. Improper handling of auto-completion input allows an authenticated attacker to extract other users email addresses
How urgent is CVE-2022-3540?
Priority 34/100. No elevated risk signals yet.