How severe is CVE-2015-5327?

CVE-2015-5327 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2015-5327 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-5327?

CVE-2015-5327 primarily affects Linux Linux Kernel. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-5327?

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

When was CVE-2015-5327 published?

CVE-2015-5327 was published on 2017-09-25 and last updated on 2026-06-17.

CVE-2015-5327

CVE-2015-5327 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 6.5. 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-125.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Linux Linux Kernel
Published: 2017-09-25
Last modified: 2026-06-17

Description

Out-of-bounds memory read in the x509_decode_time function in x509_cert_parser.c in Linux kernels 4.3-rc1 and after.

Frequently asked questions

What is CVE-2015-5327?: Out-of-bounds memory read in the x509_decode_time function in x509_cert_parser.c in Linux kernels 4.3-rc1 and after.
How severe is CVE-2015-5327?: CVE-2015-5327 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2015-5327 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-5327?: CVE-2015-5327 primarily affects Linux Linux Kernel. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-5327?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-5327 published?: CVE-2015-5327 was published on 2017-09-25 and last updated on 2026-06-17.

References

Affected products (8)

cpe:2.3:o:linux:linux_kernel:4.3:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.3:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.3:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.3:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.3:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.3:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.3:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.3:rc7:*:*:*:*:*:*

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