MEDIUM
libssh2: Using SSH_MSG_KEXINIT data unbounded
Published Mar 13, 2015
6.8
MEDIUMCVSS 2.0
EPSS 3.50%
Description
The kex_agree_methods function in libssh2 before 1.5.0 allows remote servers to cause a denial of service (crash) or have other unspecified impact via crafted length values in an SSH_MSG_KEXINIT packet.
Affected products
No data.
Configuration 1
- 7.0
Configuration 3
OR
- 20
- 21
- 22
No data.
Red Hat Enterprise Linux 7
libssh2-0:1.4.3-10.el7
Fixed · RHSA-2015:2140
Red Hat Enterprise Linux 6
libssh2
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | libssh2-0:1.4.3-10.el7 | Fixed | RHSA-2015:2140 |
| Red Hat Enterprise Linux 6 | libssh2 | Will not fix | n/a |
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.
No CVSS v3.0 score for this CVE.
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.
3.50% 0.03501
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.03501
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 (39 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 3.50% (0.03501) | 88.79th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.50% (0.03501) | 87.61th | v5 (v2026.06.15) |
| Jun 7, 2026 | 3.64% (0.03635) | 88.07th | v4 (v2025.03.14) |
| Mar 4, 2026 | 4.68% (0.04684) | 89.13th | v4 (v2025.03.14) |
| Mar 1, 2026 | 1.35% (0.01353) | 79.94th | v4 (v2025.03.14) |
| Feb 4, 2026 | 4.68% (0.04684) | 89.07th | v4 (v2025.03.14) |
| Feb 1, 2026 | 1.35% (0.01353) | 79.84th | v4 (v2025.03.14) |
| Jan 4, 2026 | 4.68% (0.04684) | 88.99th | v4 (v2025.03.14) |
| Jan 1, 2026 | 1.35% (0.01353) | 79.78th | v4 (v2025.03.14) |
| Dec 4, 2025 | 5.09% (0.05091) | 89.40th | v4 (v2025.03.14) |
| Dec 1, 2025 | 1.87% (0.01868) | 82.60th | v4 (v2025.03.14) |
| Nov 4, 2025 | 5.09% (0.05091) | 89.31th | v4 (v2025.03.14) |
| Nov 1, 2025 | 1.87% (0.01868) | 82.56th | v4 (v2025.03.14) |
| Oct 4, 2025 | 5.09% (0.05091) | 89.35th | v4 (v2025.03.14) |
| Oct 1, 2025 | 1.87% (0.01868) | 82.50th | v4 (v2025.03.14) |
| Sep 5, 2025 | 4.13% (0.04133) | 88.19th | v4 (v2025.03.14) |
| Sep 1, 2025 | 1.53% (0.01528) | 80.67th | v4 (v2025.03.14) |
| Aug 4, 2025 | 5.09% (0.05091) | 89.42th | v4 (v2025.03.14) |
| Aug 1, 2025 | 1.87% (0.01868) | 82.41th | v4 (v2025.03.14) |
| Jul 12, 2025 | 4.16% (0.04160) | 88.19th | v4 (v2025.03.14) |
| Jul 4, 2025 | 2.31% (0.02309) | 84.08th | v4 (v2025.03.14) |
| Jul 1, 2025 | 0.95% (0.00951) | 75.45th | v4 (v2025.03.14) |
| Jun 4, 2025 | 2.31% (0.02309) | 83.96th | v4 (v2025.03.14) |
| Jun 1, 2025 | 0.95% (0.00951) | 75.35th | v4 (v2025.03.14) |
| May 21, 2025 | 2.31% (0.02309) | 83.93th | v4 (v2025.03.14) |
| May 4, 2025 | 4.16% (0.04160) | 88.03th | v4 (v2025.03.14) |
| May 1, 2025 | 1.87% (0.01868) | 82.15th | v4 (v2025.03.14) |
| Mar 30, 2025 | 5.09% (0.05091) | 88.82th | v4 (v2025.03.14) |
| Mar 29, 2025 | 8.60% (0.08595) | 87.16th | v4 (v2025.03.14) |
| Mar 17, 2025 | 5.09% (0.05091) | 89.07th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.82% (0.00824) | 82.62th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.61% (0.00611) | 77.99th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.61% (0.00611) | 75.38th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.18% (0.01183) | 61.76th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.18% (0.01183) | 61.26th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.54% (0.01537) | 73.85th | v2 (v2022.01.01) |
| Oct 19, 2022 | 1.18% (0.01183) | 60.79th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.18% (0.01183) | 58.77th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.18% (0.01183) | 35.15th | v2 (v2022.01.01) |
Weaknesses (2)
References (12)
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151943.html vendor-advisoryx_refsource_FEDORAThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152362.html vendor-advisoryx_refsource_FEDORAThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/153933.html vendor-advisoryx_refsource_FEDORAThird Party Advisory
- http://www.debian.org/security/2015/dsa-3182 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.libssh2.org/adv_20150311.html x_refsource_CONFIRMVendor Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:148 vendor-advisoryx_refsource_MANDRIVABroken Link
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/73061 vdb-entryx_refsource_BID
- https://access.redhat.com/security/cve/CVE-2015-1782 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1199511 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2015-1782
- https://www.cve.org/CVERecord?id=CVE-2015-1782
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Mar 13, 2015
Updated Aug 6, 2024
Reserved Feb 17, 2015
Link CVE-2015-1782
CISA Vulnrichment
Updated n/a