How severe is CVE-2015-0847?

CVE-2015-0847 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2015-0847 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-0847?

CVE-2015-0847 primarily affects Wouter Verhelst Nbd. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-0847?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2015-0847 published?

CVE-2015-0847 was published on 2015-05-29 and last updated on 2026-06-17.

CVE-2015-0847

CVE-2015-0847 is a high-severity vulnerability in Wouter Verhelst Nbd with a CVSS 2.0 base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-17.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-17
Affected product: Wouter Verhelst Nbd
Published: 2015-05-29
Last modified: 2026-06-17

Description

nbd-server.c in Network Block Device (nbd-server) before 3.11 does not properly handle signals, which allows remote attackers to cause a denial of service (deadlock) via unspecified vectors.

Frequently asked questions

What is CVE-2015-0847?: nbd-server.c in Network Block Device (nbd-server) before 3.11 does not properly handle signals, which allows remote attackers to cause a denial of service (deadlock) via unspecified vectors.
How severe is CVE-2015-0847?: CVE-2015-0847 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2015-0847 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-0847?: CVE-2015-0847 primarily affects Wouter Verhelst Nbd. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-0847?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2015-0847 published?: CVE-2015-0847 was published on 2015-05-29 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:*
cpe:2.3:a:wouter_verhelst:nbd:*:*:*:*:*:*:*:*

More vulnerabilities in Wouter Verhelst Nbd

CVE-2013-7441 — High (CVSS 7.8): The modern style negotiation in Network Block Device (nbd-server) 2.9.22 through 3.3 allows remote attackers to cause a…
CVE-2013-6410 — High (CVSS 7.5): nbd-server in Network Block Device (nbd) before 3.5 does not properly check IP addresses, which might allow remote…
CVE-2011-0530 — High (CVSS 7.5): Buffer overflow in the mainloop function in nbd-server.c in the server in Network Block Device (nbd) before 2.9.20…
CVE-2005-3534 — High (CVSS 7.5): Buffer overflow in the Network Block Device (nbd) server 2.7.5 and earlier, and 2.8.0 through 2.8.2, allows remote…
CVE-2011-1925 — Medium (CVSS 5.0): nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause a denial of service (NULL…

All CVEs affecting Wouter Verhelst Nbd →

Other CWE-17 vulnerabilities

CVE-2015-5887 — Critical (CVSS 10.0): The TLS Handshake Protocol implementation in Secure Transport in Apple OS X before 10.11 accepts a Certificate Request…
CVE-2015-2738 — Critical (CVSS 10.0): The YCbCrImageDataDeserializer::ToDataSourceSurface function in the YCbCr implementation in Mozilla Firefox before…
CVE-2015-2737 — Critical (CVSS 10.0): The rx::d3d11::SetBufferData function in the Direct3D 11 implementation in Mozilla Firefox before 39.0, Firefox ESR…
CVE-2015-2734 — Critical (CVSS 10.0): The CairoTextureClientD3D9::BorrowDrawTarget function in the Direct3D 9 implementation in Mozilla Firefox before 39.0,…
CVE-2015-4335 — Critical (CVSS 10.0): Redis before 2.8.21 and 3.x before 3.0.2 allows remote attackers to execute arbitrary Lua bytecode via the eval command.
CVE-2015-3292 — Critical (CVSS 10.0): The installer in NetApp OnCommand Workflow Automation before 2.2.1P1 and 3.x before 3.0P1 sets up the Java Debugging…

Browse all CWE-17 vulnerabilities →