CRITICAL
The verify_certificate function in lib/vtls/schannel.c in libcurl 7.30.0 through 7.51.0, when built for Windows CE using the schannel TLS backend, allows remote attackers to obtain sensitive information, cause a denial of service (crash), or possibly have unspecified other impact via a wildcard certificate name, which triggers an out-of-bounds read
Published Mar 12, 2018
9.8
CRITICALCVSS 3.0
EPSS 1.80%
Description
The verify_certificate function in lib/vtls/schannel.c in libcurl 7.30.0 through 7.51.0, when built for Windows CE using the schannel TLS backend, allows remote attackers to obtain sensitive information, cause a denial of service (crash), or possibly have unspecified other impact via a wildcard certificate name, which triggers an out-of-bounds read.
Affected products
No data.
AND
Running on/with
- n/a
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.
9.8 CRITICAL NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
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.
1.80% 0.01797
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01797
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (44 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.80% (0.01797) | 77.65th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.83% (0.01831) | 76.02th | v5 (v2026.06.15) |
| May 31, 2026 | 0.76% (0.00755) | 73.55th | v4 (v2025.03.14) |
| Mar 4, 2026 | 1.85% (0.01854) | 82.73th | v4 (v2025.03.14) |
| Mar 1, 2026 | 0.80% (0.00801) | 73.89th | v4 (v2025.03.14) |
| Feb 4, 2026 | 1.85% (0.01854) | 82.62th | v4 (v2025.03.14) |
| Feb 1, 2026 | 0.80% (0.00801) | 73.76th | v4 (v2025.03.14) |
| Jan 4, 2026 | 1.85% (0.01854) | 82.55th | v4 (v2025.03.14) |
| Jan 1, 2026 | 0.80% (0.00801) | 73.69th | v4 (v2025.03.14) |
| Dec 4, 2025 | 1.85% (0.01854) | 82.45th | v4 (v2025.03.14) |
| Dec 1, 2025 | 0.80% (0.00801) | 73.45th | v4 (v2025.03.14) |
| Nov 4, 2025 | 1.85% (0.01854) | 82.42th | v4 (v2025.03.14) |
| Nov 1, 2025 | 0.80% (0.00801) | 73.50th | v4 (v2025.03.14) |
| Oct 4, 2025 | 1.85% (0.01854) | 82.37th | v4 (v2025.03.14) |
| Oct 1, 2025 | 0.80% (0.00801) | 73.40th | v4 (v2025.03.14) |
| Sep 6, 2025 | 1.95% (0.01952) | 82.76th | v4 (v2025.03.14) |
| Sep 1, 2025 | 0.84% (0.00844) | 74.00th | v4 (v2025.03.14) |
| Aug 4, 2025 | 1.95% (0.01952) | 82.71th | v4 (v2025.03.14) |
| Aug 1, 2025 | 0.84% (0.00844) | 73.96th | v4 (v2025.03.14) |
| Jul 4, 2025 | 1.95% (0.01952) | 82.64th | v4 (v2025.03.14) |
| Jul 1, 2025 | 0.84% (0.00844) | 73.87th | v4 (v2025.03.14) |
| Jun 4, 2025 | 1.95% (0.01952) | 82.54th | v4 (v2025.03.14) |
| Jun 1, 2025 | 0.84% (0.00844) | 73.74th | v4 (v2025.03.14) |
| May 18, 2025 | 1.95% (0.01952) | 82.52th | v4 (v2025.03.14) |
| May 5, 2025 | 5.62% (0.05624) | 89.80th | v4 (v2025.03.14) |
| May 1, 2025 | 3.62% (0.03622) | 87.20th | v4 (v2025.03.14) |
| Apr 20, 2025 | 6.47% (0.06474) | 90.54th | v4 (v2025.03.14) |
| Apr 19, 2025 | 3.62% (0.03622) | 87.16th | v4 (v2025.03.14) |
| Apr 16, 2025 | 6.47% (0.06474) | 90.52th | v4 (v2025.03.14) |
| Apr 13, 2025 | 3.62% (0.03622) | 86.77th | v4 (v2025.03.14) |
| Apr 2, 2025 | 6.47% (0.06474) | 90.19th | v4 (v2025.03.14) |
| Apr 1, 2025 | 3.62% (0.03622) | 86.72th | v4 (v2025.03.14) |
| Mar 30, 2025 | 6.47% (0.06474) | 90.16th | v4 (v2025.03.14) |
| Mar 29, 2025 | 9.76% (0.09761) | 88.16th | v4 (v2025.03.14) |
| Mar 22, 2025 | 6.47% (0.06474) | 90.27th | v4 (v2025.03.14) |
| Mar 19, 2025 | 3.62% (0.03622) | 86.41th | v4 (v2025.03.14) |
| Mar 17, 2025 | 6.96% (0.06956) | 90.76th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.35% (0.00349) | 72.65th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.35% (0.00349) | 71.01th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.35% (0.00349) | 67.29th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.05% (0.01055) | 27.52th | v2 (v2022.01.01) |
Weaknesses (1)
References (2)
- https://curl.haxx.se/CVE-2016-9952.patch x_refsource_CONFIRMVendor Advisory
- https://curl.haxx.se/docs/adv_20161221C.html x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://curl.haxx.se/CVE-2016-9952.patch | x_refsource_CONFIRMVendor Advisory | |
| https://curl.haxx.se/docs/adv_20161221C.html | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Mar 12, 2018
Updated Aug 6, 2024
Reserved Dec 15, 2016
Link CVE-2016-9953
CISA Vulnrichment
Updated n/a