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CVE-2011-1925

nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause a...

5.0 MediumFix available

CVE-2011-1925 is a medium vulnerability (CVSS 5.0) in Wouter Verhelst Nbd, published May 31, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.52%, the 85th percentile. Fixed in nbd 1:2.9.22-1.

What does this mean?
Severity
5.0 MediumCVSS 2.0, NVD
Exploit chance
2.52%EPSS, 85th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
1:2.9.22-1nbd +2 more

Description

nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by causing a negotiation failure, as demonstrated by specifying a name for a non-existent export.

Exploit likelihood

2.52%Up 1.2 points since Feb 4, 2022
90%50%10%1%

Affected products

Affected packages

Affected packages
PackageAffectedFixed
nbd
Debian:12
before 1:2.9.22-1
1:2.9.22-1
nbd
Debian:13
before 1:2.9.22-1
1:2.9.22-1
nbd
Debian:14
before 1:2.9.22-1
1:2.9.22-1

What each source reports

NVD Score used5.0

nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by causing a negotiation failure, as demonstrated by specifying a name for a non-existent export.

Record
CVE-2011-1925
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Updated
2026-11-02
CVE ListNo score

nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by causing a negotiation failure, as demonstrated by specifying a name for a non-existent export.

Record
CVE-2011-1925
Updated
2026-11-02
EUVDEUVD-2011-1923No score

nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by causing a negotiation failure, as demonstrated by specifying a name for a non-existent export.

Record
EUVD-2011-1923
Updated
2026-11-03
GitHub AdvisoriesGHSA-4c65-9qmh-v9h5No score

nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause a...

nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by causing a negotiation failure, as demonstrated by specifying a name for a non-existent export.

Record
GHSA-4c65-9qmh-v9h5
Updated
2026-11-02
OSVNo score

nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by causing a negotiation failure, as demonstrated by specifying a name for a non-existent export.

Record
CVE-2011-1925
Updated
2026-11-02
OSVDEBIAN-CVE-2011-1925No score

nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by causing a negotiation failure, as demonstrated by specifying a name for a non-existent export.

Record
DEBIAN-CVE-2011-1925
Updated
2026-11-02

History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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