The modern style negotiation in Network Block Device (nbd-server) 2.9.22 through 3.3 allows remote attackers to cause a denial of service (root process termination) by (1) closing the connection during negotiation or (2) specifying a name for a non-existent export
Published May 29, 2015
7.8
HIGHCVSS 2.0
EPSS 3.65%
Description
The modern style negotiation in Network Block Device (nbd-server) 2.9.22 through 3.3 allows remote attackers to cause a denial of service (root process termination) by (1) closing the connection during negotiation or (2) specifying a name for a non-existent export.
Affected products
No data.
- 2.9.3
- 2.9.4
- 2.9.5
- 2.9.6
- 2.9.7
- 2.9.8
- 2.9.9
- 2.9.22
- 2.9.23
- 2.9.24
- 2.9.25
- 3.0
- 3.1
- 3.1.1
- 3.2
- 3.3
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:C
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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.65% (0.03648) | 89.23th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.64% (0.03644) | 88.10th | v5 (v2026.06.15) |
| Jul 5, 2025 | 3.17% (0.03168) | 86.38th | v4 (v2025.03.14) |
| May 20, 2025 | 5.97% (0.05975) | 90.15th | v4 (v2025.03.14) |
| Mar 30, 2025 | 11.15% (0.11151) | 92.85th | v4 (v2025.03.14) |
| Mar 29, 2025 | 8.47% (0.08469) | 87.01th | v4 (v2025.03.14) |
| Mar 17, 2025 | 11.15% (0.11151) | 92.95th | v4 (v2025.03.14) |
| Dec 12, 2024 | 4.24% (0.04238) | 92.57th | v3 (v2023.03.01) |
| Mar 7, 2023 | 4.21% (0.04211) | 90.90th | 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://lists.opensuse.org/opensuse-updates/2015-06/msg00003.html vendor-advisoryx_refsource_SUSE
- http://sourceforge.net/p/nbd/mailman/message/30410146/ mailing-listx_refsource_MLIST
- http://www.debian.org/security/2015/dsa-3271 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2015/05/19/6 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2015/05/21/5 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/74808 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-2676-1 vendor-advisoryx_refsource_UBUNTU
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=781547 x_refsource_CONFIRM
- https://github.com/yoe/nbd/commit/741495cb08503fd32a9d22648e63b64390c601f4 x_refsource_CONFIRM
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-updates/2015-06/msg00003.html | vendor-advisoryx_refsource_SUSE | |
| http://sourceforge.net/p/nbd/mailman/message/30410146/ | mailing-listx_refsource_MLIST | |
| http://www.debian.org/security/2015/dsa-3271 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.openwall.com/lists/oss-security/2015/05/19/6 | mailing-listx_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2015/05/21/5 | mailing-listx_refsource_MLIST | |
| http://www.securityfocus.com/bid/74808 | vdb-entryx_refsource_BID | |
| http://www.ubuntu.com/usn/USN-2676-1 | vendor-advisoryx_refsource_UBUNTU | |
| https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=781547 | x_refsource_CONFIRM | |
| https://github.com/yoe/nbd/commit/741495cb08503fd32a9d22648e63b64390c601f4 | x_refsource_CONFIRM |
Change history (0)
No recorded changes yet.