When receiving calls using WhatsApp on Android, a stack allocation failed to properly account for the amount of data being passed in
Published Jun 14, 2019
9.8
CRITICALCVSS 3.0
EPSS 1.54%
Description
When receiving calls using WhatsApp on Android, a stack allocation failed to properly account for the amount of data being passed in. An off-by-one error meant that data was written beyond the allocated space on the stack. This issue affects WhatsApp for Android starting in version 2.18.180 and was fixed in version 2.18.295. It also affects WhatsApp Business for Android starting in version v2.18.103 and was fixed in version v2.18.150.
Affected products
-
- Version 2.18.103StatusaffectedConstraints<unspecified
- Version 2.18.150StatusaffectedConstraints-
- Version unspecifiedStatusunaffectedConstraints<2.18.103
- Version
-
- Version 2.18.180StatusaffectedConstraints<unspecified
- Version 2.18.295StatusaffectedConstraints-
- Version unspecifiedStatusunaffectedConstraints<2.18.180
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WhatsApp Business for Android | n/a |
| |||||||||||||
| WhatsApp for Android | n/a |
|
- ≥ 2.18.180 · < 2.18.295
- ≥ 2.18.103 · < 2.18.150
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.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:P/I:P/A:P
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 v2
- EPSS v3
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.54% (0.01540) | 74.04th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.54% (0.01540) | 71.57th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.19% (0.00193) | 57.23th | v3 (v2023.03.01) |
| Jan 24, 2024 | 0.19% (0.00193) | 57.23th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.19% (0.00193) | 55.23th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.42% (0.00416) | 10.04th | v1 |
| Jan 6, 2022 | 0.42% (0.00416) | 9.79th | v1 |
| Sep 1, 2021 | 0.42% (0.00416) | 25.53th | v1 |
| Apr 14, 2021 | 0.42% (0.00416) | 0.00th | v1 |
References (1)
- https://www.facebook.com/security/advisories/cve-2018-6339/ x_refsource_MISCThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://www.facebook.com/security/advisories/cve-2018-6339/ | x_refsource_MISCThird Party Advisory |
Change history (0)
No recorded changes yet.