When receiving calls using WhatsApp for iOS, a missing size check when parsing a sender-provided packet allowed for a stack-based overflow
Published Jun 14, 2019
9.8
CRITICALCVSS 3.1
EPSS 2.20%
Description
When receiving calls using WhatsApp for iOS, a missing size check when parsing a sender-provided packet allowed for a stack-based overflow. This issue affects WhatsApp for iOS prior to v2.18.90.24 and WhatsApp Business for iOS prior to v2.18.90.24.
Affected products
-
- Version 2.18.90.24StatusaffectedConstraints-
- Version unspecifiedStatusaffectedConstraints<2.18.90.24
- Version
-
- Version 2.18.90.24StatusaffectedConstraints-
- Version unspecifiedStatusaffectedConstraints<2.18.90.24
- 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 iOS | n/a |
| ||||||||||
| WhatsApp for iOS | n/a |
|
- < 2.18.90.24
- < 2.18.90.24
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:H/A:H
No CVSS v3.0 score for this CVE.
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 1, 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 (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.20% (0.02196) | 81.84th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.20% (0.02196) | 80.10th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.45% (0.00445) | 75.20th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.44% (0.00444) | 74.17th | v3 (v2023.03.01) |
| Nov 25, 2023 | 0.44% (0.00441) | 72.01th | v3 (v2023.03.01) |
| Nov 10, 2023 | 0.45% (0.00446) | 72.07th | v3 (v2023.03.01) |
| Sep 9, 2023 | 0.40% (0.00402) | 70.42th | v3 (v2023.03.01) |
| Jul 24, 2023 | 0.46% (0.00457) | 71.96th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.37% (0.00373) | 68.41th | 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 | 0.62% (0.00624) | 17.80th | v1 |
| Jan 6, 2022 | 0.62% (0.00624) | 17.24th | v1 |
| Sep 1, 2021 | 0.62% (0.00624) | 45.04th | v1 |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
References (2)
- http://www.securityfocus.com/bid/108805 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://www.facebook.com/security/advisories/cve-2018-20655/ x_refsource_MISCThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/108805 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://www.facebook.com/security/advisories/cve-2018-20655/ | x_refsource_MISCThird Party Advisory |
Change history (0)
No recorded changes yet.