CVE-2020-11054
LOWEPSS 73th pctlDescription
In qutebrowser versions less than 1.11.1, reloading a page with certificate errors shows a green URL. After a certificate error was overridden by the user, qutebrowser displays the URL as yellow (colors.statusbar.url.warn.fg). However, when the affected website was subsequently loaded again, the URL was mistakenly displayed as green (colors.statusbar.url.success_https). While the user already has seen a certificate error prompt at this point (or set content.ssl_strict to false, which is not recommended), this could still provide a false sense of security. This has been fixed in 1.11.1 and 1.12.0. All versions of qutebrowser are believed to be affected, though versions before v0.11.x couldn't be tested. Backported patches for older versions (greater than or equal to 1.4.0 and less than or equal to 1.10.2) are available, but no further releases are planned.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
Exploit Intelligence
Elevated risk: more likely to be exploited than 73% of all known CVEs.
References
Related Vulnerabilities
Other CWE-684 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2023-5363 | High | 7.5 | 3.3% | - | Fix |
| CVE-2025-47227 | High | 7.5 | 2.1% | - | - |
| CVE-2026-34478 | High | 7.5 | 1.0% | - | Fix |
| CVE-2023-24845 | Critical | 9.1 | 0.7% | - | Fix |
| CVE-2024-50357 | Critical | 9.8 | 0.6% | - | - |
| CVE-2024-6425 | Critical | 9.1 | 0.5% | - | - |
Common questions
How do I fix CVE-2020-11054?
Published advisories record a fix for 2 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.
Is CVE-2020-11054 being actively exploited?
Not that we know of. CVE-2020-11054 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.5% is the estimated probability that it will be exploited in the next 30 days. That is higher than 73% of all scored CVEs.
How severe is CVE-2020-11054?
CVE-2020-11054 has a CVSS v3 base score of 3.5, rated low. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2020-11054 affect?
Published advisories record a fix for qutebrowser (Debian), qutebrowser (PyPI (Python)). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-17.