How severe is CVE-2015-3281?

CVE-2015-3281 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2015-3281 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-3281?

CVE-2015-3281 primarily affects Redhat Enterprise Linux Desktop. In total, 56 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-3281?

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

When was CVE-2015-3281 published?

CVE-2015-3281 was published on 2015-07-06 and last updated on 2026-06-17.

CVE-2015-3281

CVE-2015-3281 is a medium-severity vulnerability in Redhat Enterprise Linux Desktop with a CVSS 2.0 base score of 5.0. 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-119.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Redhat Enterprise Linux Desktop
Published: 2015-07-06
Last modified: 2026-06-17

Description

The buffer_slow_realign function in HAProxy 1.5.x before 1.5.14 and 1.6-dev does not properly realign a buffer that is used for pending outgoing data, which allows remote attackers to obtain sensitive information (uninitialized memory contents of previous requests) via a crafted request.

Frequently asked questions

What is CVE-2015-3281?: The buffer_slow_realign function in HAProxy 1.5.x before 1.5.14 and 1.6-dev does not properly realign a buffer that is used for pending outgoing data, which allows remote attackers to obtain sensitive information (uninitialized memory contents of previous requests) via a crafted request.
How severe is CVE-2015-3281?: CVE-2015-3281 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2015-3281 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-3281?: CVE-2015-3281 primarily affects Redhat Enterprise Linux Desktop. In total, 56 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-3281?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-3281 published?: CVE-2015-3281 was published on 2015-07-06 and last updated on 2026-06-17.

References

Affected products (56)

cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev0:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev1:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev10:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev11:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev12:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev13:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev14:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev15:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev16:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev17:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev18:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev19:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev2:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev3:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev4:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev5:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev6:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev7:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev8:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev9:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.0:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.1:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.2:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.3:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.4:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.5:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.6:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.7:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.8:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.9:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.10:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.11:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.12:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.13:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.6:dev0:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:openstack_cloud:5:*:*:*:*:*:*:*

More vulnerabilities in Redhat Enterprise Linux Desktop

CVE-2018-18505 — Critical (CVSS 10.0): An earlier fix for an Inter-process Communication (IPC) vulnerability, CVE-2011-3079, added authentication to…
CVE-2014-0247 — Critical (CVSS 10.0): LibreOffice 4.2.4 executes unspecified VBA macros automatically, which has unspecified impact and attack vectors,…
CVE-2014-1512 — Critical (CVSS 10.0): Use-after-free vulnerability in the TypeObject class in the JavaScript engine in Mozilla Firefox before 28.0, Firefox…
CVE-2013-5843 — Critical (CVSS 10.0): Unspecified vulnerability in Oracle Java SE 7u40 and earlier, Java SE 6u60 and earlier, Java SE 5.0u51 and earlier,…
CVE-2013-5842 — Critical (CVSS 10.0): Unspecified vulnerability in Oracle Java SE 7u40 and earlier, Java SE 6u60 and earlier, Java SE 5.0u51 and earlier, and…
CVE-2013-5830 — Critical (CVSS 10.0): Unspecified vulnerability in Oracle Java SE 7u40 and earlier, Java SE 6u60 and earlier, Java SE 5.0u51 and earlier,…

All CVEs affecting Redhat Enterprise Linux Desktop →

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

CVE-2026-77946 — Critical (CVSS 10.0): A vulnerability was determined in TRENDnet TEW-821DAP 2.2.01b05. Affected by this vulnerability is the function…
CVE-2026-76008 — Critical (CVSS 10.0): A flaw has been found in Comfast CF-N1-S 2.6.0.1. This affects the function get_para_from_uri of the file…
CVE-2026-75784 — Critical (CVSS 10.0): A vulnerability was detected in TRENDnet TEW-WLC100 1v2.07b01. Affected by this issue is the function FUN_0040da4c of…
CVE-2026-74843 — Critical (CVSS 10.0): A vulnerability was determined in Wavlink WN531P3 and WN535M1 V250922. Affected by this vulnerability is the function…
CVE-2026-16367 — Critical (CVSS 10.0): Sandbox escape due to invalid pointer in the Disability Access APIs component. This vulnerability was fixed in Firefox…
CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →