HIGH
A heap buffer overflow vulnerability may occur in WebAssembly when "shrinkElements" is called followed by garbage collection on memory that is now uninitialized
Published Jun 11, 2018
7.5
HIGHCVSS 3.0
EPSS 15.25%
Description
A heap buffer overflow vulnerability may occur in WebAssembly when "shrinkElements" is called followed by garbage collection on memory that is now uninitialized. This results in a potentially exploitable crash. This vulnerability affects Firefox < 58.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<58
- Version
Configuration 2
OR
- 14.04
- 16.04
- 17.10
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.
7.5 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
15.25% 0.15255
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.15255
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 (40 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 15.25% (0.15255) | 96.67th | v5 (v2026.06.15) |
| Sep 22, 2026 | 15.25% (0.15255) | 96.61th | v5 (v2026.06.15) |
| Sep 21, 2026 | 5.87% (0.05865) | 92.92th | v5 (v2026.06.15) |
| Sep 6, 2026 | 15.25% (0.15255) | 96.53th | v5 (v2026.06.15) |
| Sep 5, 2026 | 5.87% (0.05865) | 92.77th | v5 (v2026.06.15) |
| Aug 30, 2026 | 15.25% (0.15255) | 96.51th | v5 (v2026.06.15) |
| Aug 28, 2026 | 5.87% (0.05865) | 92.73th | v5 (v2026.06.15) |
| Aug 24, 2026 | 15.25% (0.15255) | 96.50th | v5 (v2026.06.15) |
| Aug 23, 2026 | 5.87% (0.05865) | 92.70th | v5 (v2026.06.15) |
| Jun 15, 2026 | 15.44% (0.15444) | 96.36th | v5 (v2026.06.15) |
| Dec 28, 2025 | 35.43% (0.35430) | 96.90th | v4 (v2025.03.14) |
| Dec 27, 2025 | 32.33% (0.32332) | 96.71th | v4 (v2025.03.14) |
| Oct 28, 2025 | 35.43% (0.35430) | 96.85th | v4 (v2025.03.14) |
| Oct 27, 2025 | 32.33% (0.32332) | 96.64th | v4 (v2025.03.14) |
| Oct 1, 2025 | 35.43% (0.35430) | 96.95th | v4 (v2025.03.14) |
| Sep 8, 2025 | 32.33% (0.32332) | 96.70th | v4 (v2025.03.14) |
| Jun 29, 2025 | 40.94% (0.40938) | 97.21th | v4 (v2025.03.14) |
| May 12, 2025 | 43.91% (0.43913) | 97.35th | v4 (v2025.03.14) |
| Mar 30, 2025 | 49.66% (0.49655) | 97.57th | v4 (v2025.03.14) |
| Mar 29, 2025 | 55.54% (0.55542) | 97.20th | v4 (v2025.03.14) |
| Mar 19, 2025 | 50.07% (0.50068) | 97.50th | v4 (v2025.03.14) |
| Mar 17, 2025 | 47.02% (0.47020) | 97.39th | v4 (v2025.03.14) |
| Dec 17, 2024 | 0.92% (0.00916) | 82.64th | v3 (v2023.03.01) |
| Jan 29, 2024 | 3.62% (0.03620) | 90.78th | v3 (v2023.03.01) |
| Dec 12, 2023 | 5.04% (0.05039) | 92.04th | v3 (v2023.03.01) |
| Nov 2, 2023 | 6.73% (0.06729) | 93.09th | v3 (v2023.03.01) |
| Sep 20, 2023 | 9.29% (0.09290) | 93.97th | v3 (v2023.03.01) |
| Jul 10, 2023 | 12.58% (0.12576) | 94.68th | v3 (v2023.03.01) |
| Jun 5, 2023 | 21.69% (0.21687) | 95.73th | v3 (v2023.03.01) |
| Apr 17, 2023 | 28.17% (0.28166) | 96.16th | v3 (v2023.03.01) |
| Apr 1, 2023 | 35.17% (0.35170) | 96.45th | v3 (v2023.03.01) |
| Mar 7, 2023 | 42.74% (0.42738) | 96.72th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.32% (0.01324) | 31.25th | v1 |
| Jan 6, 2022 | 1.32% (0.01324) | 30.61th | v1 |
| Sep 1, 2021 | 1.32% (0.01324) | 69.73th | v1 |
| Apr 14, 2021 | 1.32% (0.01324) | 0.00th | v1 |
Weaknesses (1)
References (5)
- http://www.securityfocus.com/bid/102786 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040270 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1415883 x_refsource_CONFIRMIssue TrackingPermissions Required
- https://usn.ubuntu.com/3544-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-02/ x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/102786 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1040270 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1415883 | x_refsource_CONFIRMIssue TrackingPermissions Required | |
| https://usn.ubuntu.com/3544-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://www.mozilla.org/security/advisories/mfsa2018-02/ | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mozilla
Published Jun 11, 2018
Updated Aug 5, 2024
Reserved Jan 3, 2018
Link CVE-2018-5094
CISA Vulnrichment
Updated n/a