PatchTheCVECVE-2020-16126: An Ubuntu-specific modification to AccountsService in versions before 0.6.55-0ubuntu13.2, among other earlier
CVE-2020-16126 is a low-severity flaw (CVSS 3.3) affecting accountsservice. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
An Ubuntu-specific modification to AccountsService in versions before 0.6.55-0ubuntu13.2, among other earlier versions, improperly dropped the ruid, allowing untrusted users to send signals to AccountService, thus stopping it from handling D-Bus messages in a timely fashion.
Why this priority
- Public exploit reference
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 3.3 (Low) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.5% (top 55%) |
| CISA exploited list | No |
| Weakness | CWE-269 |
| Published | 2020-11-11 |
| 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-2020-16126?
accountsservice: upgrade to 0.6.55. Exact commands for each OS are on this page.
Is CVE-2020-16126 being exploited?
CVE-2020-16126 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-2020-16126 affect?
CVE-2020-16126 affects accountsservice. Severity is low (CVSS 3.3). An Ubuntu-specific modification to AccountsService in versions before 0.6.55-0ubuntu13.2, among other earlier versions, improperly dropped the ruid, allowing untrusted users to send signals to AccountService, thus stopping it from handling
How urgent is CVE-2020-16126?
Priority 33/100. Public exploit reference; On your watchlist
Software pages
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