How severe is CVE-2014-3640?

CVE-2014-3640 has a CVSS 2.0 base score of 2.1, rated low severity.

Is CVE-2014-3640 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-3640?

CVE-2014-3640 primarily affects Redhat Enterprise Linux Desktop. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-3640?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2014-3640 published?

CVE-2014-3640 was published on 2014-11-07 and last updated on 2026-06-17.

CVE-2014-3640

CVE-2014-3640 is a low-severity vulnerability in Redhat Enterprise Linux Desktop with a CVSS 2.0 base score of 2.1. 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-476.

Key facts

Severity: Low (CVSS 2.0 base score 2.1)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Redhat Enterprise Linux Desktop
Published: 2014-11-07
Last modified: 2026-06-17

Description

The sosendto function in slirp/udp.c in QEMU before 2.1.2 allows local users to cause a denial of service (NULL pointer dereference) by sending a udp packet with a value of 0 in the source port and address, which triggers access of an uninitialized socket.

Frequently asked questions

What is CVE-2014-3640?: The sosendto function in slirp/udp.c in QEMU before 2.1.2 allows local users to cause a denial of service (NULL pointer dereference) by sending a udp packet with a value of 0 in the source port and address, which triggers access of an uninitialized socket.
How severe is CVE-2014-3640?: CVE-2014-3640 has a CVSS 2.0 base score of 2.1, rated low severity.
Is CVE-2014-3640 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-3640?: CVE-2014-3640 primarily affects Redhat Enterprise Linux Desktop. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-3640?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-3640 published?: CVE-2014-3640 was published on 2014-11-07 and last updated on 2026-06-17.

References

Affected products (22)

cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:2.0.0:-:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:2.0.0:rc0:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:2.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:2.0.0:rc2:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:2.0.0:rc3:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:2.1.0:*:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:2.1.0:rc0:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:2.1.0:rc1:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:2.1.0:rc2:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:2.1.0:rc3:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:2.1.0:rc5:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:2.1.1:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:lts:*:*:*
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:*:*:*:*:*:*:*

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