HIGH
Use after free vulnerability in the String.replace method JavaScriptCore in Apple Safari in iOS before 10.3 allows remote attackers to execute arbitrary code via a crafted web page, or a crafted file
Published Jun 27, 2017
8.8
HIGHCVSS 3.0
EPSS 8.04%
Description
Use after free vulnerability in the String.replace method JavaScriptCore in Apple Safari in iOS before 10.3 allows remote attackers to execute arbitrary code via a crafted web page, or a crafted file.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
8.8 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
6.8 MEDIUM NVD
AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
8.04% 0.08038
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.08038
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (18 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 8.04% (0.08038) | 94.62th | v5 (v2026.06.15) |
| Jun 15, 2026 | 8.04% (0.08038) | 94.03th | v5 (v2026.06.15) |
| May 25, 2025 | 21.69% (0.21689) | 95.39th | v4 (v2025.03.14) |
| Mar 30, 2025 | 13.45% (0.13447) | 93.59th | v4 (v2025.03.14) |
| Mar 29, 2025 | 17.23% (0.17229) | 91.76th | v4 (v2025.03.14) |
| Mar 17, 2025 | 13.45% (0.13447) | 93.65th | v4 (v2025.03.14) |
| Jul 20, 2024 | 2.33% (0.02326) | 89.88th | v3 (v2023.03.01) |
| Jul 9, 2024 | 2.33% (0.02326) | 89.83th | v3 (v2023.03.01) |
| Jun 7, 2023 | 3.26% (0.03260) | 89.87th | v3 (v2023.03.01) |
| May 7, 2023 | 2.00% (0.01999) | 87.12th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.10% (0.02101) | 87.35th | v3 (v2023.03.01) |
| Mar 6, 2023 | 8.74% (0.08739) | 93.95th | v2 (v2022.01.01) |
| Apr 1, 2022 | 8.74% (0.08739) | 93.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 8.74% (0.08739) | 82.84th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.60% (0.01599) | 33.75th | v1 |
| Jan 6, 2022 | 1.60% (0.01599) | 33.05th | v1 |
| Sep 1, 2021 | 1.60% (0.01599) | 73.13th | v1 |
| Apr 14, 2021 | 1.60% (0.01599) | 0.00th | v1 |
Weaknesses (1)
References (4)
- http://www.securityfocus.com/bid/98316 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.zerodayinitiative.com/advisories/ZDI-17-321 x_refsource_MISCThird Party AdvisoryVDB Entry
- https://support.apple.com/en-us/HT207617 x_refsource_CONFIRMVendor Advisory
- https://www.exploit-db.com/exploits/41964/ exploitx_refsource_EXPLOIT-DB
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/98316 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.zerodayinitiative.com/advisories/ZDI-17-321 | x_refsource_MISCThird Party AdvisoryVDB Entry | |
| https://support.apple.com/en-us/HT207617 | x_refsource_CONFIRMVendor Advisory | |
| https://www.exploit-db.com/exploits/41964/ | exploitx_refsource_EXPLOIT-DB |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner apple
Published Jun 27, 2017
Updated Aug 5, 2024
Reserved Dec 1, 2016
Link CVE-2017-2491
CISA Vulnrichment
Updated n/a