The CtcpParser::packedReply method in core/ctcpparser.cpp in Quassel before 0.7.3 allows remote attackers to cause a denial of service (crash) via a crafted Client-To-Client Protocol (CTCP) request, as demonstrated in the wild in September 2011
Published Oct 4, 2011
5.0
MEDIUMCVSS 2.0
EPSS 2.07%
Description
The CtcpParser::packedReply method in core/ctcpparser.cpp in Quassel before 0.7.3 allows remote attackers to cause a denial of service (crash) via a crafted Client-To-Client Protocol (CTCP) request, as demonstrated in the wild in September 2011.
Affected products
No data.
- ≤ 0.7.2
- 0.3.0
- 0.3.1
- 0.4.0
- 0.4.1
- 0.4.2
- 0.4.3
- 0.5.0
- 0.5.1
- 0.5.2
- 0.6.0
- 0.6.1
- 0.7.0
- 0.7.1
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.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
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 (8 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.07% (0.02069) | 80.72th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.07% (0.02069) | 78.88th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.62% (0.01621) | 80.56th | v4 (v2025.03.14) |
| Dec 12, 2024 | 3.76% (0.03761) | 92.17th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.76% (0.03761) | 90.41th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.97% (0.01974) | 78.97th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.97% (0.01974) | 77.12th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.97% (0.01974) | 56.20th | v2 (v2022.01.01) |
References (9)
- http://bugs.quassel-irc.org/projects/quassel-irc/repository/revisions/da215fcb9cd3096a3e223c87577d5d4ab8f8518b/diff/src/core/ctcpparser.cpp x_refsource_CONFIRMPatch
- http://osvdb.org/75351 vdb-entryx_refsource_OSVDB
- http://secunia.com/advisories/45970 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.openwall.com/lists/oss-security/2011/09/08/7 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2011/09/09/7 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/49526 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-1200-1 vendor-advisoryx_refsource_UBUNTU
- https://bugs.gentoo.org/show_bug.cgi?id=382313 x_refsource_CONFIRM
- https://exchange.xforce.ibmcloud.com/vulnerabilities/69682 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://bugs.quassel-irc.org/projects/quassel-irc/repository/revisions/da215fcb9cd3096a3e223c87577d5d4ab8f8518b/diff/src/core/ctcpparser.cpp | x_refsource_CONFIRMPatch | |
| http://osvdb.org/75351 | vdb-entryx_refsource_OSVDB | |
| http://secunia.com/advisories/45970 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://www.openwall.com/lists/oss-security/2011/09/08/7 | mailing-listx_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2011/09/09/7 | mailing-listx_refsource_MLIST | |
| http://www.securityfocus.com/bid/49526 | vdb-entryx_refsource_BID | |
| http://www.ubuntu.com/usn/USN-1200-1 | vendor-advisoryx_refsource_UBUNTU | |
| https://bugs.gentoo.org/show_bug.cgi?id=382313 | x_refsource_CONFIRM | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/69682 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.