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CVE-2015-4861· NVD / CVE Program· CNA oracle

Unspecified vulnerability in Oracle MySQL Server 5.5.45 and earlier, and 5.6.26 and earlier, allows remote authenticated users to affect ava

Noroxi assessment

Priority: Monitor (action score 15/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 3.5% (FIRST EPSS); higher than 89.1% of all records.
  • Fixed version: mysql-5.5 (Debian:7) 5.5.46-0+deb7u1; mariadb-10.0 (Debian:8) 10.0.22-0+deb8u1; mysql-5.5 (Debian:8) 5.5.46-0+deb8u1.

Low priority for now. Upgrade to mysql-5.5 (Debian:7) 5.5.46-0+deb7u1; mariadb-10.0 (Debian:8) 10.0.22-0+deb8u1; mysql-5.5 (Debian:8) 5.5.46-0+deb8u1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Unspecified vulnerability in Oracle MySQL Server 5.5.45 and earlier, and 5.6.26 and earlier, allows remote authenticated users to affect availability via unknown vectors related to Server : InnoDB.

LowCVSS 3.5 · v2.0—No exploit Fix available
Published
Oct 21, 2015
Updated
Jun 16, 2026
EPSS
3.5% · 89th percentile
CWE
—

Report tools

JSON

Action score

15

Monitor

Low priority for now.

CVSS
14 / 40 · 3.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 3.5%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
oraclelinux
oraclesolaris
oraclemysql
opensuseleap
opensuseopensuse
redhatenterprise linux desktop
redhatenterprise linux eus
redhatenterprise linux server
redhatenterprise linux server aus
redhatenterprise linux server tus
redhatenterprise linux workstation
mariadbmariadb

and 3 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • oracle mysql5.5.0 and later · up to 5.5.45 inclusive
  • oracle mysql5.6.0 and later · up to 5.6.26 inclusive

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:7mysql-5.5before 5.5.46-0+deb7u15.5.46-0+deb7u1
Debian:8mariadb-10.0before 10.0.22-0+deb8u110.0.22-0+deb8u1
Debian:8mysql-5.5before 5.5.46-0+deb8u15.5.46-0+deb8u1
openSUSE:Tumbleweedmariadbbefore 10.0.22-3.810.0.22-3.8
Red Hat:enterprise_linux:7::clientmariadbbefore 1:5.5.47-1.el7_21:5.5.47-1.el7_2
Red Hat:enterprise_linux:7::clientmariadb-benchbefore 1:5.5.47-1.el7_21:5.5.47-1.el7_2
Red Hat:enterprise_linux:7::clientmariadb-debuginfobefore 1:5.5.47-1.el7_21:5.5.47-1.el7_2
Red Hat:enterprise_linux:7::clientmariadb-develbefore 1:5.5.47-1.el7_21:5.5.47-1.el7_2
Red Hat:enterprise_linux:7::clientmariadb-embeddedbefore 1:5.5.47-1.el7_21:5.5.47-1.el7_2
Red Hat:enterprise_linux:7::clientmariadb-embedded-develbefore 1:5.5.47-1.el7_21:5.5.47-1.el7_2
Red Hat:enterprise_linux:7::clientmariadb-libsbefore 1:5.5.47-1.el7_21:5.5.47-1.el7_2
Red Hat:enterprise_linux:7::clientmariadb-serverbefore 1:5.5.47-1.el7_21:5.5.47-1.el7_2
Red Hat:enterprise_linux:7::clientmariadb-testbefore 1:5.5.47-1.el7_21:5.5.47-1.el7_2
Red Hat:rhel_software_collections:2::el6mariadb55-mariadbbefore 0:5.5.49-1.el60:5.5.49-1.el6
Red Hat:rhel_software_collections:2::el6mariadb55-mariadb-benchbefore 0:5.5.49-1.el60:5.5.49-1.el6
Red Hat:rhel_software_collections:2::el6mariadb55-mariadb-debuginfobefore 0:5.5.49-1.el60:5.5.49-1.el6
Red Hat:rhel_software_collections:2::el6mariadb55-mariadb-develbefore 0:5.5.49-1.el60:5.5.49-1.el6
Red Hat:rhel_software_collections:2::el6mariadb55-mariadb-libsbefore 0:5.5.49-1.el60:5.5.49-1.el6
Red Hat:rhel_software_collections:2::el6mariadb55-mariadb-serverbefore 0:5.5.49-1.el60:5.5.49-1.el6
Red Hat:rhel_software_collections:2::el6mariadb55-mariadb-testbefore 0:5.5.49-1.el60:5.5.49-1.el6
Red Hat:rhel_software_collections:2::el6mysql55-mysqlbefore 0:5.5.50-1.el60:5.5.50-1.el6
Red Hat:rhel_software_collections:2::el6mysql55-mysql-benchbefore 0:5.5.50-1.el60:5.5.50-1.el6
Red Hat:rhel_software_collections:2::el6mysql55-mysql-debuginfobefore 0:5.5.50-1.el60:5.5.50-1.el6
Red Hat:rhel_software_collections:2::el6mysql55-mysql-develbefore 0:5.5.50-1.el60:5.5.50-1.el6

+58

Same product

oracle: all records

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Published before and after this one in the same product

  • ← EarlierCVE-2015-4836Oct 21, 2015 · Unspecified vulnerability in Oracle MySQL Server 5.5.45 and earlier, and 5.6.26 and earlier, allows remote authenticated users to affect ava
    12Monitor
  • ← EarlierCVE-2015-4858Oct 21, 2015 · Unspecified vulnerability in Oracle MySQL Server 5.5.45 and earlier, and 5.6.26 and earlier, allows remote authenticated users to affect ava
    17Monitor
  • Later →CVE-2015-4870Oct 21, 2015 · Unspecified vulnerability in Oracle MySQL Server 5.5.45 and earlier, and 5.6.26 and earlier, allows remote authenticated users to affect ava
    25Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:mariadb-10.010.0.22-0+deb8u1 · Debian:8Package registry (OSV)
debian:mysql-5.55.5.46-0+deb7u1 · Debian:7Package registry (OSV)
opensuse:mariadb10.0.22-3.8 · openSUSE:TumbleweedPackage registry (OSV)
red hat:mariadb1:5.5.47-1.el7_2 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:mariadb-bench1:5.5.47-1.el7_2 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:mariadb-debuginfo1:5.5.47-1.el7_2 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:mariadb-devel1:5.5.47-1.el7_2 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:mariadb-embedded1:5.5.47-1.el7_2 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:mariadb-embedded-devel1:5.5.47-1.el7_2 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:mariadb-libs1:5.5.47-1.el7_2 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:mariadb-server1:5.5.47-1.el7_2 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:mariadb-test1:5.5.47-1.el7_2 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:rh-mysql56-mysql0:5.6.30-1.el6 · Red Hat:rhel_software_collections:2::el6Package registry (OSV)
red hat:rh-mysql56-mysql-bench0:5.6.30-1.el6 · Red Hat:rhel_software_collections:2::el6Package registry (OSV)
red hat:rh-mysql56-mysql-common0:5.6.30-1.el6 · Red Hat:rhel_software_collections:2::el6Package registry (OSV)
suse:mariadb10.0.22-20.3.1 · SUSE:Linux Enterprise Desktop 12Package registry (OSV)
suse:mysql5.5.46-0.14.1 · SUSE:Linux Enterprise Software Development Kit 11 SP3Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

Technical details

Attack conditions

    If successful

    Confidentiality
    none
    Integrity
    none
    Availability
    P · the service can be disrupted
    Attack complexity
    M
    Confidentiality impact
    None
    Integrity impact
    None
    Availability impact
    P

    Weakness class (CWE)

    —

    CVSS vector

    AV:N/AC:M/Au:S/C:N/I:N/A:P

    nvd-primary

    Attack context

    MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

    MITRE has no CAPEC/ATT&CK mapping for this CWE.

    Change log

    1. Fix✗ → ✓

    For records you follow, these changes also arrive as notifications. →

    References

    Show all references (17 more)

    Vendor advisories and official records. Exploit/PoC links are deliberately left out.

    All records