Version 2.7.1 is available, it fixes three security problems:
- a malformed IRC message 324 (channel mode) can cause a buffer overflow and possibly a crash (CVE-2020-8955)
- a new IRC message 005 received with longer nick prefixes can cause a buffer overflow and possibly a crash
- a malformed IRC message 352 (WHO) can cause a crash.
Upgrade is recommended for all users.