CVE-2020-16126
CVE-2020-16126 is a low-severity vulnerability in Freedesktop Accountsservice with a CVSS 3.x base score of 3.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-269.
Key facts
- Severity: Low (CVSS 3.x base score 3.3)
- CVSS v2: 2.1
- EPSS exploit prediction: 1% (42nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-269
- Affected product: Freedesktop Accountsservice
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2020-16126?
- 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.
- How severe is CVE-2020-16126?
- CVE-2020-16126 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
- Is CVE-2020-16126 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-16126?
- CVE-2020-16126 affects Freedesktop Accountsservice. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-16126?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-16126 published?
- CVE-2020-16126 was published on 2020-11-11 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:freedesktop:accountsservice:*:*:*:*:*:*:*:*
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- CVE-2018-14036 — Medium (CVSS 6.5): Directory Traversal with ../ sequences occurs in AccountsService before 0.6.50 because of an insufficient path check in…
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