xchat/hexchat: does not verify the server hostname matches the domain name in the subject's Common Name (CN) or subjectAltName field in X.509 certificates
Published Apr 21, 2016
6.5
MEDIUMCVSS 3.0
EPSS 0.76%
Description
The ssl_do_connect function in common/server.c in HexChat before 2.10.2, XChat, and XChat-GNOME does not verify that the server hostname matches a domain name in the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
Affected products
No data.
Configuration 1
- 12.04
- 14.04
- 15.10
Configuration 2
- n/a
- n/a
Configuration 3
- ≤ 2.10.1
No data.
Red Hat Enterprise Linux 5
xchat
Will not fix
Red Hat Enterprise Linux 6
xchat
Will not fix
Red Hat Enterprise Linux 7
xchat
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | xchat | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | xchat | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | xchat | 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.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
AV:N/AC:M/Au:N/C:P/I:P/A:N
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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.76% (0.00757) | 53.51th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.76% (0.00757) | 50.17th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.30% (0.00297) | 50.96th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.09% (0.00093) | 41.33th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.09% (0.00093) | 38.10th | 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) |
References (8)
- http://hexchat.readthedocs.org/en/latest/changelog.html x_refsource_CONFIRMVendor Advisory
- http://www.ubuntu.com/usn/USN-2945-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2013-7449 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1081839 x_refsource_CONFIRMIssue Tracking
- https://github.com/hexchat/hexchat/commit/c9b63f7f9be01692b03fa15275135a4910a7e02d x_refsource_CONFIRM
- https://github.com/hexchat/hexchat/issues/524 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2013-7449
- https://www.cve.org/CVERecord?id=CVE-2013-7449
| Link | Providers | Tags |
|---|---|---|
| http://hexchat.readthedocs.org/en/latest/changelog.html | x_refsource_CONFIRMVendor Advisory | |
| http://www.ubuntu.com/usn/USN-2945-1 | vendor-advisoryx_refsource_UBUNTU | |
| https://access.redhat.com/security/cve/CVE-2013-7449 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1081839 | x_refsource_CONFIRMIssue Tracking | |
| https://github.com/hexchat/hexchat/commit/c9b63f7f9be01692b03fa15275135a4910a7e02d | x_refsource_CONFIRM | |
| https://github.com/hexchat/hexchat/issues/524 | x_refsource_CONFIRM | |
| https://nvd.nist.gov/vuln/detail/CVE-2013-7449 | ||
| https://www.cve.org/CVERecord?id=CVE-2013-7449 |
Change history (0)
No recorded changes yet.