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CVE-2015-5327

18
FAUCET Score

CVE-2015-5327 describes an out-of-bounds memory read vulnerability in the x509_decode_time function within the x509_cert_parser.c file of Linux kernels 4.3-rc1 and later. This flaw could allow an authenticated attacker to remotely access sensitive information. Rated Medium severity with a CVSS score of 6.5, the vulnerability has a low attack complexity and could lead to high confidentiality impact. There is no evidence of active exploitation, nor are there publicly available exploits in Metasploit or ExploitDB, and it has received no significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
4.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:4.3:*:*:*:*:*:*:*
4.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:4.3:rc1:*:*:*:*:*:*
4.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:4.3:rc2:*:*:*:*:*:*
4.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:4.3:rc3:*:*:*:*:*:*
4.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:4.3:rc4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.63%
Probability of exploitation in next 30 days
EPSS Percentile
73.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0163 is in the 87th percentile among its peer group of 21,974 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2015-5327Low

kernel: User triggerable out-of-bounds read

Nov 9, 2015

References

bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
git.kernel.org / pub/scm/linux/kernel/git/torvalds/linux.git/commit
Patch
openwall.com / lists/oss-security/2015/11/27/1
Mailing ListThird Party Advisory