The Signal Private Messenger application before 4.47.7 for Android allows a caller to force a call to be answered, without callee user interaction, via a connect message
Published Oct 5, 2019
7.5
HIGHCVSS 3.1
EPSS 1.75%
Description
The Signal Private Messenger application before 4.47.7 for Android allows a caller to force a call to be answered, without callee user interaction, via a connect message. The existence of the call is noticeable to the callee; however, the audio channel may be open before the callee can block eavesdropping.
Affected products
No data.
- < 4.47.7
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.75% (0.01755) | 77.15th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.75% (0.01755) | 76.93th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.35% (0.00347) | 71.97th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.35% (0.00347) | 70.89th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.35% (0.00347) | 68.12th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.34% (0.00338) | 66.75th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Feb 4, 2022 | 12.49% (0.12492) | 89.83th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.63% (0.03630) | 71.73th | v1 |
| Jan 6, 2022 | 3.63% (0.03630) | 71.48th | v1 |
| Jan 5, 2022 | 0.83% (0.00833) | 58.90th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.83% (0.00833) | 0.00th | v1 |
References (3)
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1943 x_refsource_MISCExploitThird Party Advisory
- https://news.ycombinator.com/item?id=21161432 x_refsource_MISCExploitIssue TrackingThird Party Advisory
- https://twitter.com/moxie/status/1180261210341511168 x_refsource_MISCThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://bugs.chromium.org/p/project-zero/issues/detail?id=1943 | x_refsource_MISCExploitThird Party Advisory | |
| https://news.ycombinator.com/item?id=21161432 | x_refsource_MISCExploitIssue TrackingThird Party Advisory | |
| https://twitter.com/moxie/status/1180261210341511168 | x_refsource_MISCThird Party Advisory |
Change history (0)
No recorded changes yet.