PatchTheCVECVE-2015-4456: ownCloud Desktop Client before 1.8.2 does not call QNetworkReply::ignoreSslErrors with the list of errors to b
CVE-2015-4456 is a low-severity flaw (CVSS 2.6) affecting owncloud desktop client. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
ownCloud Desktop Client before 1.8.2 does not call QNetworkReply::ignoreSslErrors with the list of errors to be ignored, which allows man-in-the-middle attackers to bypass the user's certificate distrust decision and obtain sensitive information by leveraging a self-signed certificate and a connection to a server using its own self-signed certificate.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 2.6 (Low) |
| EPSS exploit chance | 0.8% (top 43%) |
| CISA exploited list | No |
| Published | 2015-10-26 |
| 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-2015-4456?
owncloud desktop client: upgrade to newer than 1.8.1. Exact commands for each OS are on this page.
Is CVE-2015-4456 being exploited?
CVE-2015-4456 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-2015-4456 affect?
CVE-2015-4456 affects owncloud desktop client. Severity is low (CVSS 2.6). ownCloud Desktop Client before 1.8.2 does not call QNetworkReply::ignoreSslErrors with the list of errors to be ignored, which allows man-in-the-middle attackers to bypass the user's certificate distrust decision and obtain sensitive inform
How urgent is CVE-2015-4456?
Priority 23/100. No elevated risk signals yet.
Software pages
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