CVE-2021-34825
Quassel through 0.13.1, when --require-ssl is enabled, launches without SSL or TLS support if a usable X.509 certificate is not found on the local system.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.62%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Quassel through 0.13.1, when --require-ssl is enabled, launches without SSL or TLS support if a usable X.509 certificate is not found on the local system.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.62% probability · 49th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-319
- Affected
- quassel-irc/quassel · fedoraproject/fedora
- Source
- cve@mitre.org
EPSS 0.6% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/quassel/quassel/pull/581Exploit, Patch, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7ZFWRN5P2WG23MWMVAEVV3YBHGFJHDSW/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JOFTSGJUJHCA3KGQBO6OZXWU7JFKVHMJ/
- https://github.com/quassel/quassel/pull/581Exploit, Patch, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7ZFWRN5P2WG23MWMVAEVV3YBHGFJHDSW/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JOFTSGJUJHCA3KGQBO6OZXWU7JFKVHMJ/
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.